Finding the Fourth Proportional to 116,393.89, 174,812.26 and 72,328.57

Step by Step Solution

1. Step 1: Write the proportion equation
   116,393.89 : 174,812.26 = 72,328.57 : x
2. Step 2: Convert to fraction form
   116,393.89/174,812.26 = 72,328.57/x
3. Step 3: Cross multiply
   116,393.89x = 174,812.26 × 72,328.57
4. Step 4: Simplify right side
   116,393.89x = 12,643,921,098.83
5. Step 5: Solve for x
   x = 12,643,921,098.83/116,393.89
6. Step 6: Final answer
   x = 108,630.46