Finding the Fourth Proportional to 124,870.59, 172,323.29 and 71,154.45

Step by Step Solution

1. Step 1: Write the proportion equation
   124,870.59 : 172,323.29 = 71,154.45 : x
2. Step 2: Convert to fraction form
   124,870.59/172,323.29 = 71,154.45/x
3. Step 3: Cross multiply
   124,870.59x = 172,323.29 × 71,154.45
4. Step 4: Simplify right side
   124,870.59x = 12,261,568,922.14
5. Step 5: Solve for x
   x = 12,261,568,922.14/124,870.59
6. Step 6: Final answer
   x = 98,194.21