Finding the Fourth Proportional to 9,180.24, 12,667.50 and 5,403

Step by Step Solution

1. Step 1: Write the proportion equation
   9,180.24 : 12,667.50 = 5,403 : x
2. Step 2: Convert to fraction form
   9,180.24/12,667.50 = 5,403/x
3. Step 3: Cross multiply
   9,180.24x = 12,667.50 × 5,403
4. Step 4: Simplify right side
   9,180.24x = 68,442,502.50
5. Step 5: Solve for x
   x = 68,442,502.50/9,180.24
6. Step 6: Final answer
   x = 7,455.42