Finding the Fourth Proportional to 12,131.64, 16,731.32 and 7,350.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,131.64 : 16,731.32 = 7,350.48 : x
2. Step 2: Convert to fraction form
   12,131.64/16,731.32 = 7,350.48/x
3. Step 3: Cross multiply
   12,131.64x = 16,731.32 × 7,350.48
4. Step 4: Simplify right side
   12,131.64x = 122,983,196.28
5. Step 5: Solve for x
   x = 122,983,196.28/12,131.64
6. Step 6: Final answer
   x = 10,137.39