Finding the Fourth Proportional to 12,524.56, 17,285.78 and 7,146.97

Step by Step Solution

1. Step 1: Write the proportion equation
   12,524.56 : 17,285.78 = 7,146.97 : x
2. Step 2: Convert to fraction form
   12,524.56/17,285.78 = 7,146.97/x
3. Step 3: Cross multiply
   12,524.56x = 17,285.78 × 7,146.97
4. Step 4: Simplify right side
   12,524.56x = 123,540,925.74
5. Step 5: Solve for x
   x = 123,540,925.74/12,524.56
6. Step 6: Final answer
   x = 9,863.90