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Finding the Fourth Proportional to 56,413.72, 84,627.84 and 18,957.64

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Solution

The fourth proportional to 56,413.72, 84,627.84 and 18,957.64 is: 28,438.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,413.72 : 84,627.84 = 18,957.64 : x
  2. Step 2: Convert to fraction form
    56,413.72/84,627.84 = 18,957.64/x
  3. Step 3: Cross multiply
    56,413.72x = 84,627.84 × 18,957.64
  4. Step 4: Simplify right side
    56,413.72x = 1,604,344,124.70
  5. Step 5: Solve for x
    x = 1,604,344,124.70/56,413.72
  6. Step 6: Final answer
    x = 28,438.90

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