Finding the Fourth Proportional to 9,132.39, 13,688.22 and 3,864.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,132.39 : 13,688.22 = 3,864.12 : x
2. Step 2: Convert to fraction form
   9,132.39/13,688.22 = 3,864.12/x
3. Step 3: Cross multiply
   9,132.39x = 13,688.22 × 3,864.12
4. Step 4: Simplify right side
   9,132.39x = 52,892,873.34
5. Step 5: Solve for x
   x = 52,892,873.34/9,132.39
6. Step 6: Final answer
   x = 5,791.79