Finding the Fourth Proportional to 13,246.72, 18,282.72 and 7,660.96

Step by Step Solution

1. Step 1: Write the proportion equation
   13,246.72 : 18,282.72 = 7,660.96 : x
2. Step 2: Convert to fraction form
   13,246.72/18,282.72 = 7,660.96/x
3. Step 3: Cross multiply
   13,246.72x = 18,282.72 × 7,660.96
4. Step 4: Simplify right side
   13,246.72x = 140,063,186.61
5. Step 5: Solve for x
   x = 140,063,186.61/13,246.72
6. Step 6: Final answer
   x = 10,573.42