Finding the Fourth Proportional to 12,313.71, 16,992.16 and 7,276.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,313.71 : 16,992.16 = 7,276.80 : x
2. Step 2: Convert to fraction form
   12,313.71/16,992.16 = 7,276.80/x
3. Step 3: Cross multiply
   12,313.71x = 16,992.16 × 7,276.80
4. Step 4: Simplify right side
   12,313.71x = 123,648,549.89
5. Step 5: Solve for x
   x = 123,648,549.89/12,313.71
6. Step 6: Final answer
   x = 10,041.53