Finding the Fourth Proportional to 116,396.88, 174,816.78 and 72,331.56

Step by Step Solution

1. Step 1: Write the proportion equation
   116,396.88 : 174,816.78 = 72,331.56 : x
2. Step 2: Convert to fraction form
   116,396.88/174,816.78 = 72,331.56/x
3. Step 3: Cross multiply
   116,396.88x = 174,816.78 × 72,331.56
4. Step 4: Simplify right side
   116,396.88x = 12,644,770,411.58
5. Step 5: Solve for x
   x = 12,644,770,411.58/116,396.88
6. Step 6: Final answer
   x = 108,634.96