Finding the Fourth Proportional to 10,422.90, 14,383.62 and 5,707.17

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.90 : 14,383.62 = 5,707.17 : x
2. Step 2: Convert to fraction form
   10,422.90/14,383.62 = 5,707.17/x
3. Step 3: Cross multiply
   10,422.90x = 14,383.62 × 5,707.17
4. Step 4: Simplify right side
   10,422.90x = 82,089,764.56
5. Step 5: Solve for x
   x = 82,089,764.56/10,422.90
6. Step 6: Final answer
   x = 7,875.90