Finding the Fourth Proportional to 112,836.43, 155,708.49 and 65,086.93

Step by Step Solution

1. Step 1: Write the proportion equation
   112,836.43 : 155,708.49 = 65,086.93 : x
2. Step 2: Convert to fraction form
   112,836.43/155,708.49 = 65,086.93/x
3. Step 3: Cross multiply
   112,836.43x = 155,708.49 × 65,086.93
4. Step 4: Simplify right side
   112,836.43x = 10,134,587,589.04
5. Step 5: Solve for x
   x = 10,134,587,589.04/112,836.43
6. Step 6: Final answer
   x = 89,816.63