Finding the Fourth Proportional to 82,706.98, 124,123.20 and 60,577.78

Step by Step Solution

1. Step 1: Write the proportion equation
   82,706.98 : 124,123.20 = 60,577.78 : x
2. Step 2: Convert to fraction form
   82,706.98/124,123.20 = 60,577.78/x
3. Step 3: Cross multiply
   82,706.98x = 124,123.20 × 60,577.78
4. Step 4: Simplify right side
   82,706.98x = 7,519,107,902.50
5. Step 5: Solve for x
   x = 7,519,107,902.50/82,706.98
6. Step 6: Final answer
   x = 90,912.62