Finding the Fourth Proportional to 9,178.02, 12,665.43 and 5,400.33

Step by Step Solution

1. Step 1: Write the proportion equation
   9,178.02 : 12,665.43 = 5,400.33 : x
2. Step 2: Convert to fraction form
   9,178.02/12,665.43 = 5,400.33/x
3. Step 3: Cross multiply
   9,178.02x = 12,665.43 × 5,400.33
4. Step 4: Simplify right side
   9,178.02x = 68,397,501.59
5. Step 5: Solve for x
   x = 68,397,501.59/9,178.02
6. Step 6: Final answer
   x = 7,452.32