Finding the Fourth Proportional to 112,741.20, 168,229.58 and 112,085.10

Step by Step Solution

1. Step 1: Write the proportion equation
   112,741.20 : 168,229.58 = 112,085.10 : x
2. Step 2: Convert to fraction form
   112,741.20/168,229.58 = 112,085.10/x
3. Step 3: Cross multiply
   112,741.20x = 168,229.58 × 112,085.10
4. Step 4: Simplify right side
   112,741.20x = 18,856,028,736.83
5. Step 5: Solve for x
   x = 18,856,028,736.83/112,741.20
6. Step 6: Final answer
   x = 167,250.56