Finding the Fourth Proportional to 12,847.29, 19,274.30 and 5,452.05

Step by Step Solution

1. Step 1: Write the proportion equation
   12,847.29 : 19,274.30 = 5,452.05 : x
2. Step 2: Convert to fraction form
   12,847.29/19,274.30 = 5,452.05/x
3. Step 3: Cross multiply
   12,847.29x = 19,274.30 × 5,452.05
4. Step 4: Simplify right side
   12,847.29x = 105,084,420.05
5. Step 5: Solve for x
   x = 105,084,420.05/12,847.29
6. Step 6: Final answer
   x = 8,179.50