Finding the Fourth Proportional to 13,510.92, 18,648.18 and 7,923.72

Step by Step Solution

1. Step 1: Write the proportion equation
   13,510.92 : 18,648.18 = 7,923.72 : x
2. Step 2: Convert to fraction form
   13,510.92/18,648.18 = 7,923.72/x
3. Step 3: Cross multiply
   13,510.92x = 18,648.18 × 7,923.72
4. Step 4: Simplify right side
   13,510.92x = 147,762,956.83
5. Step 5: Solve for x
   x = 147,762,956.83/13,510.92
6. Step 6: Final answer
   x = 10,936.56