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Finding the Fourth Proportional to 57,291.52, 78,936.32 and 42,891.52

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Solution

The fourth proportional to 57,291.52, 78,936.32 and 42,891.52 is: 59,095.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,291.52 : 78,936.32 = 42,891.52 : x
  2. Step 2: Convert to fraction form
    57,291.52/78,936.32 = 42,891.52/x
  3. Step 3: Cross multiply
    57,291.52x = 78,936.32 × 42,891.52
  4. Step 4: Simplify right side
    57,291.52x = 3,385,698,748.01
  5. Step 5: Solve for x
    x = 3,385,698,748.01/57,291.52
  6. Step 6: Final answer
    x = 59,095.98

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