Finding the Fourth Proportional to 12,848.72, 19,280.28 and 5,452.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,848.72 : 19,280.28 = 5,452.16 : x
2. Step 2: Convert to fraction form
   12,848.72/19,280.28 = 5,452.16/x
3. Step 3: Cross multiply
   12,848.72x = 19,280.28 × 5,452.16
4. Step 4: Simplify right side
   12,848.72x = 105,119,171.40
5. Step 5: Solve for x
   x = 105,119,171.40/12,848.72
6. Step 6: Final answer
   x = 8,181.30