Finding the Fourth Proportional to 158,620.50, 218,915.73 and 91,552.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,620.50 : 218,915.73 = 91,552.50 : x
2. Step 2: Convert to fraction form
   158,620.50/218,915.73 = 91,552.50/x
3. Step 3: Cross multiply
   158,620.50x = 218,915.73 × 91,552.50
4. Step 4: Simplify right side
   158,620.50x = 20,042,282,370.83
5. Step 5: Solve for x
   x = 20,042,282,370.83/158,620.50
6. Step 6: Final answer
   x = 126,353.67