Finding the Fourth Proportional to 11,288.78, 16,938.98 and 5,372.37

Step by Step Solution

1. Step 1: Write the proportion equation
   11,288.78 : 16,938.98 = 5,372.37 : x
2. Step 2: Convert to fraction form
   11,288.78/16,938.98 = 5,372.37/x
3. Step 3: Cross multiply
   11,288.78x = 16,938.98 × 5,372.37
4. Step 4: Simplify right side
   11,288.78x = 91,002,461.27
5. Step 5: Solve for x
   x = 91,002,461.27/11,288.78
6. Step 6: Final answer
   x = 8,061.32