Finding the Fourth Proportional to 10,989.42, 16,483.98 and 2,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,989.42 : 16,483.98 = 2,669.50 : x
2. Step 2: Convert to fraction form
   10,989.42/16,483.98 = 2,669.50/x
3. Step 3: Cross multiply
   10,989.42x = 16,483.98 × 2,669.50
4. Step 4: Simplify right side
   10,989.42x = 44,003,984.61
5. Step 5: Solve for x
   x = 44,003,984.61/10,989.42
6. Step 6: Final answer
   x = 4,004.21