Finding the Fourth Proportional to 10,423.79, 14,384.69 and 5,708.07

Step by Step Solution

1. Step 1: Write the proportion equation
   10,423.79 : 14,384.69 = 5,708.07 : x
2. Step 2: Convert to fraction form
   10,423.79/14,384.69 = 5,708.07/x
3. Step 3: Cross multiply
   10,423.79x = 14,384.69 × 5,708.07
4. Step 4: Simplify right side
   10,423.79x = 82,108,788.91
5. Step 5: Solve for x
   x = 82,108,788.91/10,423.79
6. Step 6: Final answer
   x = 7,877.06