Finding the Fourth Proportional to 11,705.32, 16,164.12 and 7,520.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,705.32 : 16,164.12 = 7,520.86 : x
2. Step 2: Convert to fraction form
   11,705.32/16,164.12 = 7,520.86/x
3. Step 3: Cross multiply
   11,705.32x = 16,164.12 × 7,520.86
4. Step 4: Simplify right side
   11,705.32x = 121,568,083.54
5. Step 5: Solve for x
   x = 121,568,083.54/11,705.32
6. Step 6: Final answer
   x = 10,385.71