Finding the Fourth Proportional to 72,938.88, 108,758.70 and 72,799.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,938.88 : 108,758.70 = 72,799.43 : x
2. Step 2: Convert to fraction form
   72,938.88/108,758.70 = 72,799.43/x
3. Step 3: Cross multiply
   72,938.88x = 108,758.70 × 72,799.43
4. Step 4: Simplify right side
   72,938.88x = 7,917,570,823.75
5. Step 5: Solve for x
   x = 7,917,570,823.75/72,938.88
6. Step 6: Final answer
   x = 108,550.76