Finding the Fourth Proportional to 122,801.97, 169,487.43 and 71,111.55

Step by Step Solution

1. Step 1: Write the proportion equation
   122,801.97 : 169,487.43 = 71,111.55 : x
2. Step 2: Convert to fraction form
   122,801.97/169,487.43 = 71,111.55/x
3. Step 3: Cross multiply
   122,801.97x = 169,487.43 × 71,111.55
4. Step 4: Simplify right side
   122,801.97x = 12,052,513,852.82
5. Step 5: Solve for x
   x = 12,052,513,852.82/122,801.97
6. Step 6: Final answer
   x = 98,145.93