Finding the Fourth Proportional to 90,901.55, 136,352.37 and 43,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,901.55 : 136,352.37 = 43,505.50 : x
2. Step 2: Convert to fraction form
   90,901.55/136,352.37 = 43,505.50/x
3. Step 3: Cross multiply
   90,901.55x = 136,352.37 × 43,505.50
4. Step 4: Simplify right side
   90,901.55x = 5,932,077,855.30
5. Step 5: Solve for x
   x = 5,932,077,855.30/90,901.55
6. Step 6: Final answer
   x = 65,258.27