Finding the Fourth Proportional to 12,738.27, 19,071.98 and 6,484.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,738.27 : 19,071.98 = 6,484.82 : x
2. Step 2: Convert to fraction form
   12,738.27/19,071.98 = 6,484.82/x
3. Step 3: Cross multiply
   12,738.27x = 19,071.98 × 6,484.82
4. Step 4: Simplify right side
   12,738.27x = 123,678,229.56
5. Step 5: Solve for x
   x = 123,678,229.56/12,738.27
6. Step 6: Final answer
   x = 9,709.19