Finding the Fourth Proportional to 124,990.24, 172,522.74 and 71,304.52

Step by Step Solution

1. Step 1: Write the proportion equation
   124,990.24 : 172,522.74 = 71,304.52 : x
2. Step 2: Convert to fraction form
   124,990.24/172,522.74 = 71,304.52/x
3. Step 3: Cross multiply
   124,990.24x = 172,522.74 × 71,304.52
4. Step 4: Simplify right side
   124,990.24x = 12,301,651,164.78
5. Step 5: Solve for x
   x = 12,301,651,164.78/124,990.24
6. Step 6: Final answer
   x = 98,420.89