Finding the Fourth Proportional to 10,422.75, 14,383.40 and 5,707.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.75 : 14,383.40 = 5,707.03 : x
2. Step 2: Convert to fraction form
   10,422.75/14,383.40 = 5,707.03/x
3. Step 3: Cross multiply
   10,422.75x = 14,383.40 × 5,707.03
4. Step 4: Simplify right side
   10,422.75x = 82,086,495.30
5. Step 5: Solve for x
   x = 82,086,495.30/10,422.75
6. Step 6: Final answer
   x = 7,875.70