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Finding the Fourth Proportional to 57,984.70, 86,847.45 and 56,688.70

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Solution

The fourth proportional to 57,984.70, 86,847.45 and 56,688.70 is: 84,906.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,984.70 : 86,847.45 = 56,688.70 : x
  2. Step 2: Convert to fraction form
    57,984.70/86,847.45 = 56,688.70/x
  3. Step 3: Cross multiply
    57,984.70x = 86,847.45 × 56,688.70
  4. Step 4: Simplify right side
    57,984.70x = 4,923,269,038.82
  5. Step 5: Solve for x
    x = 4,923,269,038.82/57,984.70
  6. Step 6: Final answer
    x = 84,906.35

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