Finding the Fourth Proportional to 9,366.96, 12,922.56 and 5,387.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,366.96 : 12,922.56 = 5,387.16 : x
2. Step 2: Convert to fraction form
   9,366.96/12,922.56 = 5,387.16/x
3. Step 3: Cross multiply
   9,366.96x = 12,922.56 × 5,387.16
4. Step 4: Simplify right side
   9,366.96x = 69,615,898.33
5. Step 5: Solve for x
   x = 69,615,898.33/9,366.96
6. Step 6: Final answer
   x = 7,432.07