Finding the Fourth Proportional to 90,895.71, 136,280.29 and 40,267.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,895.71 : 136,280.29 = 40,267.25 : x
2. Step 2: Convert to fraction form
   90,895.71/136,280.29 = 40,267.25/x
3. Step 3: Cross multiply
   90,895.71x = 136,280.29 × 40,267.25
4. Step 4: Simplify right side
   90,895.71x = 5,487,632,507.50
5. Step 5: Solve for x
   x = 5,487,632,507.50/90,895.71
6. Step 6: Final answer
   x = 60,372.84