Finding the Fourth Proportional to 90,336.88, 124,685.60 and 60,123.48

Step by Step Solution

1. Step 1: Write the proportion equation
   90,336.88 : 124,685.60 = 60,123.48 : x
2. Step 2: Convert to fraction form
   90,336.88/124,685.60 = 60,123.48/x
3. Step 3: Cross multiply
   90,336.88x = 124,685.60 × 60,123.48
4. Step 4: Simplify right side
   90,336.88x = 7,496,532,177.89
5. Step 5: Solve for x
   x = 7,496,532,177.89/90,336.88
6. Step 6: Final answer
   x = 82,984.18