Finding the Fourth Proportional to 90,150.84, 135,268.38 and 40,225.72

Step by Step Solution

1. Step 1: Write the proportion equation
   90,150.84 : 135,268.38 = 40,225.72 : x
2. Step 2: Convert to fraction form
   90,150.84/135,268.38 = 40,225.72/x
3. Step 3: Cross multiply
   90,150.84x = 135,268.38 × 40,225.72
4. Step 4: Simplify right side
   90,150.84x = 5,441,267,978.73
5. Step 5: Solve for x
   x = 5,441,267,978.73/90,150.84
6. Step 6: Final answer
   x = 60,357.37