Finding the Fourth Proportional to 17,842.88, 26,760.12 and 7,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   17,842.88 : 26,760.12 = 7,976.72 : x
2. Step 2: Convert to fraction form
   17,842.88/26,760.12 = 7,976.72/x
3. Step 3: Cross multiply
   17,842.88x = 26,760.12 × 7,976.72
4. Step 4: Simplify right side
   17,842.88x = 213,457,984.41
5. Step 5: Solve for x
   x = 213,457,984.41/17,842.88
6. Step 6: Final answer
   x = 11,963.20