Finding the Fourth Proportional to 9,411.72, 12,985.92 and 5,873.64

Step by Step Solution

1. Step 1: Write the proportion equation
   9,411.72 : 12,985.92 = 5,873.64 : x
2. Step 2: Convert to fraction form
   9,411.72/12,985.92 = 5,873.64/x
3. Step 3: Cross multiply
   9,411.72x = 12,985.92 × 5,873.64
4. Step 4: Simplify right side
   9,411.72x = 76,274,619.15
5. Step 5: Solve for x
   x = 76,274,619.15/9,411.72
6. Step 6: Final answer
   x = 8,104.22