Finding the Fourth Proportional to 9,221.52, 12,730.36 and 5,445.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,221.52 : 12,730.36 = 5,445.82 : x
2. Step 2: Convert to fraction form
   9,221.52/12,730.36 = 5,445.82/x
3. Step 3: Cross multiply
   9,221.52x = 12,730.36 × 5,445.82
4. Step 4: Simplify right side
   9,221.52x = 69,327,249.10
5. Step 5: Solve for x
   x = 69,327,249.10/9,221.52
6. Step 6: Final answer
   x = 7,517.99