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Finding the Fourth Proportional to 52,124.86, 78,157.67 and 20,517.79

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Solution

The fourth proportional to 52,124.86, 78,157.67 and 20,517.79 is: 30,765.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,124.86 : 78,157.67 = 20,517.79 : x
  2. Step 2: Convert to fraction form
    52,124.86/78,157.67 = 20,517.79/x
  3. Step 3: Cross multiply
    52,124.86x = 78,157.67 × 20,517.79
  4. Step 4: Simplify right side
    52,124.86x = 1,603,622,557.36
  5. Step 5: Solve for x
    x = 1,603,622,557.36/52,124.86
  6. Step 6: Final answer
    x = 30,765.02

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