Finding the Fourth Proportional to 124,919.72, 172,393.62 and 71,196.06

Step by Step Solution

1. Step 1: Write the proportion equation
   124,919.72 : 172,393.62 = 71,196.06 : x
2. Step 2: Convert to fraction form
   124,919.72/172,393.62 = 71,196.06/x
3. Step 3: Cross multiply
   124,919.72x = 172,393.62 × 71,196.06
4. Step 4: Simplify right side
   124,919.72x = 12,273,746,892.63
5. Step 5: Solve for x
   x = 12,273,746,892.63/124,919.72
6. Step 6: Final answer
   x = 98,253.08