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Finding the Fourth Proportional to 5,294,305.55, 7,921,417.88 and 3,136,488.78

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Solution

The fourth proportional to 5,294,305.55, 7,921,417.88 and 3,136,488.78 is: 4,692,860.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,294,305.55 : 7,921,417.88 = 3,136,488.78 : x
  2. Step 2: Convert to fraction form
    5,294,305.55/7,921,417.88 = 3,136,488.78/x
  3. Step 3: Cross multiply
    5,294,305.55x = 7,921,417.88 × 3,136,488.78
  4. Step 4: Simplify right side
    5,294,305.55x = 24,845,438,339,857.93
  5. Step 5: Solve for x
    x = 24,845,438,339,857.93/5,294,305.55
  6. Step 6: Final answer
    x = 4,692,860.68

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