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Finding the Fourth Proportional to 91,197.96, 136,795.74 and 28,868.46

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Solution

The fourth proportional to 91,197.96, 136,795.74 and 28,868.46 is: 43,302.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,197.96 : 136,795.74 = 28,868.46 : x
  2. Step 2: Convert to fraction form
    91,197.96/136,795.74 = 28,868.46/x
  3. Step 3: Cross multiply
    91,197.96x = 136,795.74 × 28,868.46
  4. Step 4: Simplify right side
    91,197.96x = 3,949,082,348.36
  5. Step 5: Solve for x
    x = 3,949,082,348.36/91,197.96
  6. Step 6: Final answer
    x = 43,302.31

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