Finding the Fourth Proportional to 86,111.28, 129,046.64 and 41,726.25

Step by Step Solution

1. Step 1: Write the proportion equation
   86,111.28 : 129,046.64 = 41,726.25 : x
2. Step 2: Convert to fraction form
   86,111.28/129,046.64 = 41,726.25/x
3. Step 3: Cross multiply
   86,111.28x = 129,046.64 × 41,726.25
4. Step 4: Simplify right side
   86,111.28x = 5,384,632,153.67
5. Step 5: Solve for x
   x = 5,384,632,153.67/86,111.28
6. Step 6: Final answer
   x = 62,531.09