Finding the Fourth Proportional to 12,772.06, 19,158.70 and 5,744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,772.06 : 19,158.70 = 5,744.50 : x
2. Step 2: Convert to fraction form
   12,772.06/19,158.70 = 5,744.50/x
3. Step 3: Cross multiply
   12,772.06x = 19,158.70 × 5,744.50
4. Step 4: Simplify right side
   12,772.06x = 110,057,152.15
5. Step 5: Solve for x
   x = 110,057,152.15/12,772.06
6. Step 6: Final answer
   x = 8,617.02