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Finding the Fourth Proportional to 116,792.78, 161,174.19 and 66,491.78

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Solution

The fourth proportional to 116,792.78, 161,174.19 and 66,491.78 is: 91,758.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,792.78 : 161,174.19 = 66,491.78 : x
  2. Step 2: Convert to fraction form
    116,792.78/161,174.19 = 66,491.78/x
  3. Step 3: Cross multiply
    116,792.78x = 161,174.19 × 66,491.78
  4. Step 4: Simplify right side
    116,792.78x = 10,716,758,783.16
  5. Step 5: Solve for x
    x = 10,716,758,783.16/116,792.78
  6. Step 6: Final answer
    x = 91,758.74

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