Finding the Fourth Proportional to 82,710.42, 124,120.98 and 29,400.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,710.42 : 124,120.98 = 29,400.30 : x
2. Step 2: Convert to fraction form
   82,710.42/124,120.98 = 29,400.30/x
3. Step 3: Cross multiply
   82,710.42x = 124,120.98 × 29,400.30
4. Step 4: Simplify right side
   82,710.42x = 3,649,194,048.29
5. Step 5: Solve for x
   x = 3,649,194,048.29/82,710.42
6. Step 6: Final answer
   x = 44,120.12