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Finding the Fourth Proportional to 57,709.61, 79,548.28 and 42,553.73

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Solution

The fourth proportional to 57,709.61, 79,548.28 and 42,553.73 is: 58,657.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,709.61 : 79,548.28 = 42,553.73 : x
  2. Step 2: Convert to fraction form
    57,709.61/79,548.28 = 42,553.73/x
  3. Step 3: Cross multiply
    57,709.61x = 79,548.28 × 42,553.73
  4. Step 4: Simplify right side
    57,709.61x = 3,385,076,029.08
  5. Step 5: Solve for x
    x = 3,385,076,029.08/57,709.61
  6. Step 6: Final answer
    x = 58,657.06

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