Finding the Fourth Proportional to 10,705.56, 16,048.78 and 8,352.72

Step by Step Solution

1. Step 1: Write the proportion equation
   10,705.56 : 16,048.78 = 8,352.72 : x
2. Step 2: Convert to fraction form
   10,705.56/16,048.78 = 8,352.72/x
3. Step 3: Cross multiply
   10,705.56x = 16,048.78 × 8,352.72
4. Step 4: Simplify right side
   10,705.56x = 134,050,843.67
5. Step 5: Solve for x
   x = 134,050,843.67/10,705.56
6. Step 6: Final answer
   x = 12,521.61