Finding the Fourth Proportional to 124,993.18, 172,491.15 and 68,404.42

Step by Step Solution

1. Step 1: Write the proportion equation
   124,993.18 : 172,491.15 = 68,404.42 : x
2. Step 2: Convert to fraction form
   124,993.18/172,491.15 = 68,404.42/x
3. Step 3: Cross multiply
   124,993.18x = 172,491.15 × 68,404.42
4. Step 4: Simplify right side
   124,993.18x = 11,799,157,070.88
5. Step 5: Solve for x
   x = 11,799,157,070.88/124,993.18
6. Step 6: Final answer
   x = 94,398.41