Finding the Fourth Proportional to 10,423.20, 14,384.25 and 5,707.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,423.20 : 14,384.25 = 5,707.56 : x
2. Step 2: Convert to fraction form
   10,423.20/14,384.25 = 5,707.56/x
3. Step 3: Cross multiply
   10,423.20x = 14,384.25 × 5,707.56
4. Step 4: Simplify right side
   10,423.20x = 82,098,969.93
5. Step 5: Solve for x
   x = 82,098,969.93/10,423.20
6. Step 6: Final answer
   x = 7,876.56