Finding the Fourth Proportional to 111,934.67, 154,480.73 and 83,591.15

Step by Step Solution

1. Step 1: Write the proportion equation
   111,934.67 : 154,480.73 = 83,591.15 : x
2. Step 2: Convert to fraction form
   111,934.67/154,480.73 = 83,591.15/x
3. Step 3: Cross multiply
   111,934.67x = 154,480.73 × 83,591.15
4. Step 4: Simplify right side
   111,934.67x = 12,913,220,683.18
5. Step 5: Solve for x
   x = 12,913,220,683.18/111,934.67
6. Step 6: Final answer
   x = 115,363.91