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Finding the Fourth Proportional to 93,506.40, 128,905.43 and 57,672.41

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Solution

The fourth proportional to 93,506.40, 128,905.43 and 57,672.41 is: 79,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,506.40 : 128,905.43 = 57,672.41 : x
  2. Step 2: Convert to fraction form
    93,506.40/128,905.43 = 57,672.41/x
  3. Step 3: Cross multiply
    93,506.40x = 128,905.43 × 57,672.41
  4. Step 4: Simplify right side
    93,506.40x = 7,434,285,877.30
  5. Step 5: Solve for x
    x = 7,434,285,877.30/93,506.40
  6. Step 6: Final answer
    x = 79,505.64

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