Finding the Fourth Proportional to 11,687.60, 16,124.76 and 7,498.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,687.60 : 16,124.76 = 7,498.16 : x
2. Step 2: Convert to fraction form
   11,687.60/16,124.76 = 7,498.16/x
3. Step 3: Cross multiply
   11,687.60x = 16,124.76 × 7,498.16
4. Step 4: Simplify right side
   11,687.60x = 120,906,030.44
5. Step 5: Solve for x
   x = 120,906,030.44/11,687.60
6. Step 6: Final answer
   x = 10,344.81