Finding the Fourth Proportional to 10,423.20, 14,383.87 and 5,707.48

Step by Step Solution

1. Step 1: Write the proportion equation
   10,423.20 : 14,383.87 = 5,707.48 : x
2. Step 2: Convert to fraction form
   10,423.20/14,383.87 = 5,707.48/x
3. Step 3: Cross multiply
   10,423.20x = 14,383.87 × 5,707.48
4. Step 4: Simplify right side
   10,423.20x = 82,095,549.89
5. Step 5: Solve for x
   x = 82,095,549.89/10,423.20
6. Step 6: Final answer
   x = 7,876.24