Finding the Fourth Proportional to 12,290.14, 16,961.61 and 7,256.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,290.14 : 16,961.61 = 7,256.02 : x
2. Step 2: Convert to fraction form
   12,290.14/16,961.61 = 7,256.02/x
3. Step 3: Cross multiply
   12,290.14x = 16,961.61 × 7,256.02
4. Step 4: Simplify right side
   12,290.14x = 123,073,781.39
5. Step 5: Solve for x
   x = 123,073,781.39/12,290.14
6. Step 6: Final answer
   x = 10,014.03