Finding the Fourth Proportional to 89,008.09, 122,831.35 and 48,724.43

Step by Step Solution

1. Step 1: Write the proportion equation
   89,008.09 : 122,831.35 = 48,724.43 : x
2. Step 2: Convert to fraction form
   89,008.09/122,831.35 = 48,724.43/x
3. Step 3: Cross multiply
   89,008.09x = 122,831.35 × 48,724.43
4. Step 4: Simplify right side
   89,008.09x = 5,984,887,514.88
5. Step 5: Solve for x
   x = 5,984,887,514.88/89,008.09
6. Step 6: Final answer
   x = 67,239.82