Finding the Fourth Proportional to 10,422.91, 14,383.60 and 5,707.36

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.91 : 14,383.60 = 5,707.36 : x
2. Step 2: Convert to fraction form
   10,422.91/14,383.60 = 5,707.36/x
3. Step 3: Cross multiply
   10,422.91x = 14,383.60 × 5,707.36
4. Step 4: Simplify right side
   10,422.91x = 82,092,383.30
5. Step 5: Solve for x
   x = 82,092,383.30/10,422.91
6. Step 6: Final answer
   x = 7,876.15