Finding the Fourth Proportional to 12,846.31, 17,728.42 and 7,468.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,846.31 : 17,728.42 = 7,468.72 : x
2. Step 2: Convert to fraction form
   12,846.31/17,728.42 = 7,468.72/x
3. Step 3: Cross multiply
   12,846.31x = 17,728.42 × 7,468.72
4. Step 4: Simplify right side
   12,846.31x = 132,408,497.71
5. Step 5: Solve for x
   x = 132,408,497.71/12,846.31
6. Step 6: Final answer
   x = 10,307.13