Finding the Fourth Proportional to 10,947.65, 16,422.29 and 3,553.30

Step by Step Solution

1. Step 1: Write the proportion equation
   10,947.65 : 16,422.29 = 3,553.30 : x
2. Step 2: Convert to fraction form
   10,947.65/16,422.29 = 3,553.30/x
3. Step 3: Cross multiply
   10,947.65x = 16,422.29 × 3,553.30
4. Step 4: Simplify right side
   10,947.65x = 58,353,223.18
5. Step 5: Solve for x
   x = 58,353,223.18/10,947.65
6. Step 6: Final answer
   x = 5,330.21