Finding the Fourth Proportional to 8,774.48, 13,147.20 and 5,304.56

Step by Step Solution

1. Step 1: Write the proportion equation
   8,774.48 : 13,147.20 = 5,304.56 : x
2. Step 2: Convert to fraction form
   8,774.48/13,147.20 = 5,304.56/x
3. Step 3: Cross multiply
   8,774.48x = 13,147.20 × 5,304.56
4. Step 4: Simplify right side
   8,774.48x = 69,740,111.23
5. Step 5: Solve for x
   x = 69,740,111.23/8,774.48
6. Step 6: Final answer
   x = 7,948.06