Finding the Fourth Proportional to 124,996.25, 172,498.26 and 71,290.01

Step by Step Solution

1. Step 1: Write the proportion equation
   124,996.25 : 172,498.26 = 71,290.01 : x
2. Step 2: Convert to fraction form
   124,996.25/172,498.26 = 71,290.01/x
3. Step 3: Cross multiply
   124,996.25x = 172,498.26 × 71,290.01
4. Step 4: Simplify right side
   124,996.25x = 12,297,401,817.89
5. Step 5: Solve for x
   x = 12,297,401,817.89/124,996.25
6. Step 6: Final answer
   x = 98,382.17