Finding the Fourth Proportional to 10,807.78, 14,916 and 7,449.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,807.78 : 14,916 = 7,449.52 : x
2. Step 2: Convert to fraction form
   10,807.78/14,916 = 7,449.52/x
3. Step 3: Cross multiply
   10,807.78x = 14,916 × 7,449.52
4. Step 4: Simplify right side
   10,807.78x = 111,117,040.32
5. Step 5: Solve for x
   x = 111,117,040.32/10,807.78
6. Step 6: Final answer
   x = 10,281.21