Finding the Fourth Proportional to 12,708.24, 19,060.02 and 5,310.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,708.24 : 19,060.02 = 5,310.72 : x
2. Step 2: Convert to fraction form
   12,708.24/19,060.02 = 5,310.72/x
3. Step 3: Cross multiply
   12,708.24x = 19,060.02 × 5,310.72
4. Step 4: Simplify right side
   12,708.24x = 101,222,429.41
5. Step 5: Solve for x
   x = 101,222,429.41/12,708.24
6. Step 6: Final answer
   x = 7,965.10