Finding the Fourth Proportional to 158,800, 238,272.72 and 68,870.24

Step by Step Solution

1. Step 1: Write the proportion equation
   158,800 : 238,272.72 = 68,870.24 : x
2. Step 2: Convert to fraction form
   158,800/238,272.72 = 68,870.24/x
3. Step 3: Cross multiply
   158,800x = 238,272.72 × 68,870.24
4. Step 4: Simplify right side
   158,800x = 16,409,899,411.85
5. Step 5: Solve for x
   x = 16,409,899,411.85/158,800
6. Step 6: Final answer
   x = 103,336.90