Finding the Fourth Proportional to 90,613.18, 124,995.79 and 84,198.52

Step by Step Solution

1. Step 1: Write the proportion equation
   90,613.18 : 124,995.79 = 84,198.52 : x
2. Step 2: Convert to fraction form
   90,613.18/124,995.79 = 84,198.52/x
3. Step 3: Cross multiply
   90,613.18x = 124,995.79 × 84,198.52
4. Step 4: Simplify right side
   90,613.18x = 10,524,460,785.72
5. Step 5: Solve for x
   x = 10,524,460,785.72/90,613.18
6. Step 6: Final answer
   x = 116,147.13