Finding the Fourth Proportional to 10,947.73, 16,423.90 and 3,551.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,947.73 : 16,423.90 = 3,551.61 : x
2. Step 2: Convert to fraction form
   10,947.73/16,423.90 = 3,551.61/x
3. Step 3: Cross multiply
   10,947.73x = 16,423.90 × 3,551.61
4. Step 4: Simplify right side
   10,947.73x = 58,331,287.48
5. Step 5: Solve for x
   x = 58,331,287.48/10,947.73
6. Step 6: Final answer
   x = 5,328.16