Finding the Fourth Proportional to 120,123.88, 165,766.29 and 71,733.94

Step by Step Solution

1. Step 1: Write the proportion equation
   120,123.88 : 165,766.29 = 71,733.94 : x
2. Step 2: Convert to fraction form
   120,123.88/165,766.29 = 71,733.94/x
3. Step 3: Cross multiply
   120,123.88x = 165,766.29 × 71,733.94
4. Step 4: Simplify right side
   120,123.88x = 11,891,069,100.88
5. Step 5: Solve for x
   x = 11,891,069,100.88/120,123.88
6. Step 6: Final answer
   x = 98,990.05