Finding the Fourth Proportional to 72,401.60, 108,553.80 and 32,938.40

Step by Step Solution

1. Step 1: Write the proportion equation
   72,401.60 : 108,553.80 = 32,938.40 : x
2. Step 2: Convert to fraction form
   72,401.60/108,553.80 = 32,938.40/x
3. Step 3: Cross multiply
   72,401.60x = 108,553.80 × 32,938.40
4. Step 4: Simplify right side
   72,401.60x = 3,575,588,485.92
5. Step 5: Solve for x
   x = 3,575,588,485.92/72,401.60
6. Step 6: Final answer
   x = 49,385.49