Finding the Fourth Proportional to 11,682.16, 16,112.24 and 7,490.80

Step by Step Solution

1. Step 1: Write the proportion equation
   11,682.16 : 16,112.24 = 7,490.80 : x
2. Step 2: Convert to fraction form
   11,682.16/16,112.24 = 7,490.80/x
3. Step 3: Cross multiply
   11,682.16x = 16,112.24 × 7,490.80
4. Step 4: Simplify right side
   11,682.16x = 120,693,567.39
5. Step 5: Solve for x
   x = 120,693,567.39/11,682.16
6. Step 6: Final answer
   x = 10,331.44