Finding the Fourth Proportional to 13,019.16, 19,532.18 and 5,628.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,019.16 : 19,532.18 = 5,628.80 : x
2. Step 2: Convert to fraction form
   13,019.16/19,532.18 = 5,628.80/x
3. Step 3: Cross multiply
   13,019.16x = 19,532.18 × 5,628.80
4. Step 4: Simplify right side
   13,019.16x = 109,942,734.78
5. Step 5: Solve for x
   x = 109,942,734.78/13,019.16
6. Step 6: Final answer
   x = 8,444.69