Finding the Fourth Proportional to 9,396.53, 12,967.54 and 5,204.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,396.53 : 12,967.54 = 5,204.78 : x
2. Step 2: Convert to fraction form
   9,396.53/12,967.54 = 5,204.78/x
3. Step 3: Cross multiply
   9,396.53x = 12,967.54 × 5,204.78
4. Step 4: Simplify right side
   9,396.53x = 67,493,128.00
5. Step 5: Solve for x
   x = 67,493,128.00/9,396.53
6. Step 6: Final answer
   x = 7,182.78