Finding the Fourth Proportional to 9,336.09, 12,885.69 and 5,359.93

Step by Step Solution

1. Step 1: Write the proportion equation
   9,336.09 : 12,885.69 = 5,359.93 : x
2. Step 2: Convert to fraction form
   9,336.09/12,885.69 = 5,359.93/x
3. Step 3: Cross multiply
   9,336.09x = 12,885.69 × 5,359.93
4. Step 4: Simplify right side
   9,336.09x = 69,066,396.40
5. Step 5: Solve for x
   x = 69,066,396.40/9,336.09
6. Step 6: Final answer
   x = 7,397.79