Finding the Fourth Proportional to 82,978.20, 124,382.25 and 32,990.67

Step by Step Solution

1. Step 1: Write the proportion equation
   82,978.20 : 124,382.25 = 32,990.67 : x
2. Step 2: Convert to fraction form
   82,978.20/124,382.25 = 32,990.67/x
3. Step 3: Cross multiply
   82,978.20x = 124,382.25 × 32,990.67
4. Step 4: Simplify right side
   82,978.20x = 4,103,453,763.61
5. Step 5: Solve for x
   x = 4,103,453,763.61/82,978.20
6. Step 6: Final answer
   x = 49,452.19