Finding the Fourth Proportional to 158,938.72, 219,339.30 and 87,323.38

Step by Step Solution

1. Step 1: Write the proportion equation
   158,938.72 : 219,339.30 = 87,323.38 : x
2. Step 2: Convert to fraction form
   158,938.72/219,339.30 = 87,323.38/x
3. Step 3: Cross multiply
   158,938.72x = 219,339.30 × 87,323.38
4. Step 4: Simplify right side
   158,938.72x = 19,153,449,042.83
5. Step 5: Solve for x
   x = 19,153,449,042.83/158,938.72
6. Step 6: Final answer
   x = 120,508.39