Finding the Fourth Proportional to 8,669.88, 12,994.20 and 3,729.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,669.88 : 12,994.20 = 3,729.06 : x
2. Step 2: Convert to fraction form
   8,669.88/12,994.20 = 3,729.06/x
3. Step 3: Cross multiply
   8,669.88x = 12,994.20 × 3,729.06
4. Step 4: Simplify right side
   8,669.88x = 48,456,151.45
5. Step 5: Solve for x
   x = 48,456,151.45/8,669.88
6. Step 6: Final answer
   x = 5,589.02