Finding the Fourth Proportional to 124,984.72, 172,452.24 and 74,013.46

Step by Step Solution

1. Step 1: Write the proportion equation
   124,984.72 : 172,452.24 = 74,013.46 : x
2. Step 2: Convert to fraction form
   124,984.72/172,452.24 = 74,013.46/x
3. Step 3: Cross multiply
   124,984.72x = 172,452.24 × 74,013.46
4. Step 4: Simplify right side
   124,984.72x = 12,763,786,967.15
5. Step 5: Solve for x
   x = 12,763,786,967.15/124,984.72
6. Step 6: Final answer
   x = 102,122.78