Finding the Fourth Proportional to 10,805.78, 14,913.24 and 7,447.52

Step by Step Solution

1. Step 1: Write the proportion equation
   10,805.78 : 14,913.24 = 7,447.52 : x
2. Step 2: Convert to fraction form
   10,805.78/14,913.24 = 7,447.52/x
3. Step 3: Cross multiply
   10,805.78x = 14,913.24 × 7,447.52
4. Step 4: Simplify right side
   10,805.78x = 111,066,653.16
5. Step 5: Solve for x
   x = 111,066,653.16/10,805.78
6. Step 6: Final answer
   x = 10,278.45