Finding the Fourth Proportional to 29,679.72, 44,521.89 and 8,620.10

Step by Step Solution

1. Step 1: Write the proportion equation
   29,679.72 : 44,521.89 = 8,620.10 : x
2. Step 2: Convert to fraction form
   29,679.72/44,521.89 = 8,620.10/x
3. Step 3: Cross multiply
   29,679.72x = 44,521.89 × 8,620.10
4. Step 4: Simplify right side
   29,679.72x = 383,783,100.89
5. Step 5: Solve for x
   x = 383,783,100.89/29,679.72
6. Step 6: Final answer
   x = 12,930.82