Finding the Fourth Proportional to 9,022.72, 12,451.40 and 5,248.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,022.72 : 12,451.40 = 5,248.12 : x
2. Step 2: Convert to fraction form
   9,022.72/12,451.40 = 5,248.12/x
3. Step 3: Cross multiply
   9,022.72x = 12,451.40 × 5,248.12
4. Step 4: Simplify right side
   9,022.72x = 65,346,441.37
5. Step 5: Solve for x
   x = 65,346,441.37/9,022.72
6. Step 6: Final answer
   x = 7,242.43