Finding the Fourth Proportional to 122,439.50, 168,910.81 and 82,111.22

Step by Step Solution

1. Step 1: Write the proportion equation
   122,439.50 : 168,910.81 = 82,111.22 : x
2. Step 2: Convert to fraction form
   122,439.50/168,910.81 = 82,111.22/x
3. Step 3: Cross multiply
   122,439.50x = 168,910.81 × 82,111.22
4. Step 4: Simplify right side
   122,439.50x = 13,869,471,630.46
5. Step 5: Solve for x
   x = 13,869,471,630.46/122,439.50
6. Step 6: Final answer
   x = 113,276.13