Finding the Fourth Proportional to 90,541.96, 135,616.38 and 55,375

Step by Step Solution

1. Step 1: Write the proportion equation
   90,541.96 : 135,616.38 = 55,375 : x
2. Step 2: Convert to fraction form
   90,541.96/135,616.38 = 55,375/x
3. Step 3: Cross multiply
   90,541.96x = 135,616.38 × 55,375
4. Step 4: Simplify right side
   90,541.96x = 7,509,757,042.50
5. Step 5: Solve for x
   x = 7,509,757,042.50/90,541.96
6. Step 6: Final answer
   x = 82,942.28