Finding the Fourth Proportional to 159,499.17, 220,140.63 and 91,562.04

Step by Step Solution

1. Step 1: Write the proportion equation
   159,499.17 : 220,140.63 = 91,562.04 : x
2. Step 2: Convert to fraction form
   159,499.17/220,140.63 = 91,562.04/x
3. Step 3: Cross multiply
   159,499.17x = 220,140.63 × 91,562.04
4. Step 4: Simplify right side
   159,499.17x = 20,156,525,169.69
5. Step 5: Solve for x
   x = 20,156,525,169.69/159,499.17
6. Step 6: Final answer
   x = 126,373.86