Finding the Fourth Proportional to 10,803.89, 16,211.99 and 8,626.46

Step by Step Solution

1. Step 1: Write the proportion equation
   10,803.89 : 16,211.99 = 8,626.46 : x
2. Step 2: Convert to fraction form
   10,803.89/16,211.99 = 8,626.46/x
3. Step 3: Cross multiply
   10,803.89x = 16,211.99 × 8,626.46
4. Step 4: Simplify right side
   10,803.89x = 139,852,131.69
5. Step 5: Solve for x
   x = 139,852,131.69/10,803.89
6. Step 6: Final answer
   x = 12,944.60