Finding the Fourth Proportional to 8,938.48, 12,333.16 and 5,401.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,938.48 : 12,333.16 = 5,401.60 : x
2. Step 2: Convert to fraction form
   8,938.48/12,333.16 = 5,401.60/x
3. Step 3: Cross multiply
   8,938.48x = 12,333.16 × 5,401.60
4. Step 4: Simplify right side
   8,938.48x = 66,618,797.06
5. Step 5: Solve for x
   x = 66,618,797.06/8,938.48
6. Step 6: Final answer
   x = 7,453.03