Finding the Fourth Proportional to 9,396.90, 12,968.82 and 5,364.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,396.90 : 12,968.82 = 5,364.72 : x
2. Step 2: Convert to fraction form
   9,396.90/12,968.82 = 5,364.72/x
3. Step 3: Cross multiply
   9,396.90x = 12,968.82 × 5,364.72
4. Step 4: Simplify right side
   9,396.90x = 69,574,088.03
5. Step 5: Solve for x
   x = 69,574,088.03/9,396.90
6. Step 6: Final answer
   x = 7,403.94