Finding the Fourth Proportional to 260,024.88, 389,992.72 and 82,492.32

Step by Step Solution

1. Step 1: Write the proportion equation
   260,024.88 : 389,992.72 = 82,492.32 : x
2. Step 2: Convert to fraction form
   260,024.88/389,992.72 = 82,492.32/x
3. Step 3: Cross multiply
   260,024.88x = 389,992.72 × 82,492.32
4. Step 4: Simplify right side
   260,024.88x = 32,171,404,255.91
5. Step 5: Solve for x
   x = 32,171,404,255.91/260,024.88
6. Step 6: Final answer
   x = 123,724.33