Finding the Fourth Proportional to 83,510.82, 125,391.17 and 72,300.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,510.82 : 125,391.17 = 72,300.82 : x
2. Step 2: Convert to fraction form
   83,510.82/125,391.17 = 72,300.82/x
3. Step 3: Cross multiply
   83,510.82x = 125,391.17 × 72,300.82
4. Step 4: Simplify right side
   83,510.82x = 9,065,884,411.76
5. Step 5: Solve for x
   x = 9,065,884,411.76/83,510.82
6. Step 6: Final answer
   x = 108,559.40