Finding the Fourth Proportional to 12,475.54, 18,738.15 and 7,803.82

Step by Step Solution

1. Step 1: Write the proportion equation
   12,475.54 : 18,738.15 = 7,803.82 : x
2. Step 2: Convert to fraction form
   12,475.54/18,738.15 = 7,803.82/x
3. Step 3: Cross multiply
   12,475.54x = 18,738.15 × 7,803.82
4. Step 4: Simplify right side
   12,475.54x = 146,229,149.73
5. Step 5: Solve for x
   x = 146,229,149.73/12,475.54
6. Step 6: Final answer
   x = 11,721.27