Finding the Fourth Proportional to 82,762.27, 124,143.72 and 20,432.77

Step by Step Solution

1. Step 1: Write the proportion equation
   82,762.27 : 124,143.72 = 20,432.77 : x
2. Step 2: Convert to fraction form
   82,762.27/124,143.72 = 20,432.77/x
3. Step 3: Cross multiply
   82,762.27x = 124,143.72 × 20,432.77
4. Step 4: Simplify right side
   82,762.27x = 2,536,600,077.70
5. Step 5: Solve for x
   x = 2,536,600,077.70/82,762.27
6. Step 6: Final answer
   x = 30,649.23