Finding the Fourth Proportional to 10,422.76, 14,383.33 and 5,642.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,422.76 : 14,383.33 = 5,642.72 : x
2. Step 2: Convert to fraction form
   10,422.76/14,383.33 = 5,642.72/x
3. Step 3: Cross multiply
   10,422.76x = 14,383.33 × 5,642.72
4. Step 4: Simplify right side
   10,422.76x = 81,161,103.86
5. Step 5: Solve for x
   x = 81,161,103.86/10,422.76
6. Step 6: Final answer
   x = 7,786.91