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Finding the Fourth Proportional to 57,429.65, 86,137.64 and 15,312.89

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Solution

The fourth proportional to 57,429.65, 86,137.64 and 15,312.89 is: 22,967.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,429.65 : 86,137.64 = 15,312.89 : x
  2. Step 2: Convert to fraction form
    57,429.65/86,137.64 = 15,312.89/x
  3. Step 3: Cross multiply
    57,429.65x = 86,137.64 × 15,312.89
  4. Step 4: Simplify right side
    57,429.65x = 1,319,016,402.38
  5. Step 5: Solve for x
    x = 1,319,016,402.38/57,429.65
  6. Step 6: Final answer
    x = 22,967.51

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