Finding the Fourth Proportional to 90,018.96, 124,236.72 and 54,227.04

Step by Step Solution

1. Step 1: Write the proportion equation
   90,018.96 : 124,236.72 = 54,227.04 : x
2. Step 2: Convert to fraction form
   90,018.96/124,236.72 = 54,227.04/x
3. Step 3: Cross multiply
   90,018.96x = 124,236.72 × 54,227.04
4. Step 4: Simplify right side
   90,018.96x = 6,736,989,584.91
5. Step 5: Solve for x
   x = 6,736,989,584.91/90,018.96
6. Step 6: Final answer
   x = 74,839.67