Finding the Fourth Proportional to 10,522.88, 14,521.20 and 5,807.15

Step by Step Solution

1. Step 1: Write the proportion equation
   10,522.88 : 14,521.20 = 5,807.15 : x
2. Step 2: Convert to fraction form
   10,522.88/14,521.20 = 5,807.15/x
3. Step 3: Cross multiply
   10,522.88x = 14,521.20 × 5,807.15
4. Step 4: Simplify right side
   10,522.88x = 84,326,786.58
5. Step 5: Solve for x
   x = 84,326,786.58/10,522.88
6. Step 6: Final answer
   x = 8,013.66