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Finding the Fourth Proportional to 15,858.92, 21,835.52 and 13,463.93

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Solution

The fourth proportional to 15,858.92, 21,835.52 and 13,463.93 is: 18,537.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.92 : 21,835.52 = 13,463.93 : x
  2. Step 2: Convert to fraction form
    15,858.92/21,835.52 = 13,463.93/x
  3. Step 3: Cross multiply
    15,858.92x = 21,835.52 × 13,463.93
  4. Step 4: Simplify right side
    15,858.92x = 293,991,950.55
  5. Step 5: Solve for x
    x = 293,991,950.55/15,858.92
  6. Step 6: Final answer
    x = 18,537.95

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