Finding the Fourth Proportional to 158,734.72, 219,046.69 and 87,113.32

Step by Step Solution

1. Step 1: Write the proportion equation
   158,734.72 : 219,046.69 = 87,113.32 : x
2. Step 2: Convert to fraction form
   158,734.72/219,046.69 = 87,113.32/x
3. Step 3: Cross multiply
   158,734.72x = 219,046.69 × 87,113.32
4. Step 4: Simplify right side
   158,734.72x = 19,081,884,400.91
5. Step 5: Solve for x
   x = 19,081,884,400.91/158,734.72
6. Step 6: Final answer
   x = 120,212.42