Finding the Fourth Proportional to 10,947.42, 16,423.72 and 3,551.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,947.42 : 16,423.72 = 3,551.88 : x
2. Step 2: Convert to fraction form
   10,947.42/16,423.72 = 3,551.88/x
3. Step 3: Cross multiply
   10,947.42x = 16,423.72 × 3,551.88
4. Step 4: Simplify right side
   10,947.42x = 58,335,082.59
5. Step 5: Solve for x
   x = 58,335,082.59/10,947.42
6. Step 6: Final answer
   x = 5,328.66