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Finding the Fourth Proportional to 57,424.12, 86,129.35 and 15,307.36

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Solution

The fourth proportional to 57,424.12, 86,129.35 and 15,307.36 is: 22,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,424.12 : 86,129.35 = 15,307.36 : x
  2. Step 2: Convert to fraction form
    57,424.12/86,129.35 = 15,307.36/x
  3. Step 3: Cross multiply
    57,424.12x = 86,129.35 × 15,307.36
  4. Step 4: Simplify right side
    57,424.12x = 1,318,413,036.41
  5. Step 5: Solve for x
    x = 1,318,413,036.41/57,424.12
  6. Step 6: Final answer
    x = 22,959.22

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