Finding the Fourth Proportional to 14,076.88, 21,107.48 and 5,762.72

Step by Step Solution

1. Step 1: Write the proportion equation
   14,076.88 : 21,107.48 = 5,762.72 : x
2. Step 2: Convert to fraction form
   14,076.88/21,107.48 = 5,762.72/x
3. Step 3: Cross multiply
   14,076.88x = 21,107.48 × 5,762.72
4. Step 4: Simplify right side
   14,076.88x = 121,636,497.15
5. Step 5: Solve for x
   x = 121,636,497.15/14,076.88
6. Step 6: Final answer
   x = 8,640.87