Finding the Fourth Proportional to 82,762.88, 124,144.72 and 20,433.38

Step by Step Solution

1. Step 1: Write the proportion equation
   82,762.88 : 124,144.72 = 20,433.38 : x
2. Step 2: Convert to fraction form
   82,762.88/124,144.72 = 20,433.38/x
3. Step 3: Cross multiply
   82,762.88x = 124,144.72 × 20,433.38
4. Step 4: Simplify right side
   82,762.88x = 2,536,695,566.95
5. Step 5: Solve for x
   x = 2,536,695,566.95/82,762.88
6. Step 6: Final answer
   x = 30,650.16