Finding the Fourth Proportional to 8,938.04, 12,334.82 and 5,400.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,938.04 : 12,334.82 = 5,400.56 : x
2. Step 2: Convert to fraction form
   8,938.04/12,334.82 = 5,400.56/x
3. Step 3: Cross multiply
   8,938.04x = 12,334.82 × 5,400.56
4. Step 4: Simplify right side
   8,938.04x = 66,614,846.82
5. Step 5: Solve for x
   x = 66,614,846.82/8,938.04
6. Step 6: Final answer
   x = 7,452.96