Finding the Fourth Proportional to 83,509.82, 125,389.67 and 72,299.82

Step by Step Solution

1. Step 1: Write the proportion equation
   83,509.82 : 125,389.67 = 72,299.82 : x
2. Step 2: Convert to fraction form
   83,509.82/125,389.67 = 72,299.82/x
3. Step 3: Cross multiply
   83,509.82x = 125,389.67 × 72,299.82
4. Step 4: Simplify right side
   83,509.82x = 9,065,650,570.86
5. Step 5: Solve for x
   x = 9,065,650,570.86/83,509.82
6. Step 6: Final answer
   x = 108,557.90