Finding the Fourth Proportional to 111,952.31, 154,505.12 and 83,608.79

Step by Step Solution

1. Step 1: Write the proportion equation
   111,952.31 : 154,505.12 = 83,608.79 : x
2. Step 2: Convert to fraction form
   111,952.31/154,505.12 = 83,608.79/x
3. Step 3: Cross multiply
   111,952.31x = 154,505.12 × 83,608.79
4. Step 4: Simplify right side
   111,952.31x = 12,917,984,941.44
5. Step 5: Solve for x
   x = 12,917,984,941.44/111,952.31
6. Step 6: Final answer
   x = 115,388.29