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Finding the Fourth Proportional to 93,176.96, 128,580.70 and 56,939.00

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Solution

The fourth proportional to 93,176.96, 128,580.70 and 56,939.00 is: 78,573.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,176.96 : 128,580.70 = 56,939.00 : x
  2. Step 2: Convert to fraction form
    93,176.96/128,580.70 = 56,939.00/x
  3. Step 3: Cross multiply
    93,176.96x = 128,580.70 × 56,939.00
  4. Step 4: Simplify right side
    93,176.96x = 7,321,255,739.41
  5. Step 5: Solve for x
    x = 7,321,255,739.41/93,176.96
  6. Step 6: Final answer
    x = 78,573.67

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