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Finding the Fourth Proportional to 92,847.20, 128,158.29 and 59,313.20

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Solution

The fourth proportional to 92,847.20, 128,158.29 and 59,313.20 is: 81,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,847.20 : 128,158.29 = 59,313.20 : x
  2. Step 2: Convert to fraction form
    92,847.20/128,158.29 = 59,313.20/x
  3. Step 3: Cross multiply
    92,847.20x = 128,158.29 × 59,313.20
  4. Step 4: Simplify right side
    92,847.20x = 7,601,477,645.64
  5. Step 5: Solve for x
    x = 7,601,477,645.64/92,847.20
  6. Step 6: Final answer
    x = 81,870.84

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