Finding the Fourth Proportional to 124,727.31, 172,131.62 and 71,017.02

Step by Step Solution

1. Step 1: Write the proportion equation
   124,727.31 : 172,131.62 = 71,017.02 : x
2. Step 2: Convert to fraction form
   124,727.31/172,131.62 = 71,017.02/x
3. Step 3: Cross multiply
   124,727.31x = 172,131.62 × 71,017.02
4. Step 4: Simplify right side
   124,727.31x = 12,224,274,345.09
5. Step 5: Solve for x
   x = 12,224,274,345.09/124,727.31
6. Step 6: Final answer
   x = 98,008.00