Finding the Fourth Proportional to 272,498.83, 408,809.76 and 82,976.15

Step by Step Solution

1. Step 1: Write the proportion equation
   272,498.83 : 408,809.76 = 82,976.15 : x
2. Step 2: Convert to fraction form
   272,498.83/408,809.76 = 82,976.15/x
3. Step 3: Cross multiply
   272,498.83x = 408,809.76 × 82,976.15
4. Step 4: Simplify right side
   272,498.83x = 33,921,458,611.90
5. Step 5: Solve for x
   x = 33,921,458,611.90/272,498.83
6. Step 6: Final answer
   x = 124,482.95