Finding the Fourth Proportional to 122,549.82, 169,131.15 and 74,831.10

Step by Step Solution

1. Step 1: Write the proportion equation
   122,549.82 : 169,131.15 = 74,831.10 : x
2. Step 2: Convert to fraction form
   122,549.82/169,131.15 = 74,831.10/x
3. Step 3: Cross multiply
   122,549.82x = 169,131.15 × 74,831.10
4. Step 4: Simplify right side
   122,549.82x = 12,656,269,998.77
5. Step 5: Solve for x
   x = 12,656,269,998.77/122,549.82
6. Step 6: Final answer
   x = 103,274.49