Finding the Fourth Proportional to 90,401.61, 124,598.43 and 60,132.81

Step by Step Solution

1. Step 1: Write the proportion equation
   90,401.61 : 124,598.43 = 60,132.81 : x
2. Step 2: Convert to fraction form
   90,401.61/124,598.43 = 60,132.81/x
3. Step 3: Cross multiply
   90,401.61x = 124,598.43 × 60,132.81
4. Step 4: Simplify right side
   90,401.61x = 7,492,453,717.49
5. Step 5: Solve for x
   x = 7,492,453,717.49/90,401.61
6. Step 6: Final answer
   x = 82,879.65