Finding the Fourth Proportional to 111,070.31, 153,117.61 and 79,183.85

Step by Step Solution

1. Step 1: Write the proportion equation
   111,070.31 : 153,117.61 = 79,183.85 : x
2. Step 2: Convert to fraction form
   111,070.31/153,117.61 = 79,183.85/x
3. Step 3: Cross multiply
   111,070.31x = 153,117.61 × 79,183.85
4. Step 4: Simplify right side
   111,070.31x = 12,124,442,047.43
5. Step 5: Solve for x
   x = 12,124,442,047.43/111,070.31
6. Step 6: Final answer
   x = 109,160.06