Finding the Fourth Proportional to 112,200.09, 168,309.42 and 80,756.52

Step by Step Solution

1. Step 1: Write the proportion equation
   112,200.09 : 168,309.42 = 80,756.52 : x
2. Step 2: Convert to fraction form
   112,200.09/168,309.42 = 80,756.52/x
3. Step 3: Cross multiply
   112,200.09x = 168,309.42 × 80,756.52
4. Step 4: Simplify right side
   112,200.09x = 13,592,083,042.42
5. Step 5: Solve for x
   x = 13,592,083,042.42/112,200.09
6. Step 6: Final answer
   x = 121,141.46