Finding the Fourth Proportional to 95,947.12, 132,443.50 and 72,142.92

Step by Step Solution

1. Step 1: Write the proportion equation
   95,947.12 : 132,443.50 = 72,142.92 : x
2. Step 2: Convert to fraction form
   95,947.12/132,443.50 = 72,142.92/x
3. Step 3: Cross multiply
   95,947.12x = 132,443.50 × 72,142.92
4. Step 4: Simplify right side
   95,947.12x = 9,554,860,825.02
5. Step 5: Solve for x
   x = 9,554,860,825.02/95,947.12
6. Step 6: Final answer
   x = 99,584.65