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Finding the Fourth Proportional to 52,459.78, 78,689.56 and 16,438.99

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Solution

The fourth proportional to 52,459.78, 78,689.56 and 16,438.99 is: 24,658.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,459.78 : 78,689.56 = 16,438.99 : x
  2. Step 2: Convert to fraction form
    52,459.78/78,689.56 = 16,438.99/x
  3. Step 3: Cross multiply
    52,459.78x = 78,689.56 × 16,438.99
  4. Step 4: Simplify right side
    52,459.78x = 1,293,576,889.94
  5. Step 5: Solve for x
    x = 1,293,576,889.94/52,459.78
  6. Step 6: Final answer
    x = 24,658.45

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