Finding the Fourth Proportional to 10,446.40, 14,417.22 and 5,731.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,446.40 : 14,417.22 = 5,731.12 : x
2. Step 2: Convert to fraction form
   10,446.40/14,417.22 = 5,731.12/x
3. Step 3: Cross multiply
   10,446.40x = 14,417.22 × 5,731.12
4. Step 4: Simplify right side
   10,446.40x = 82,626,817.89
5. Step 5: Solve for x
   x = 82,626,817.89/10,446.40
6. Step 6: Final answer
   x = 7,909.60