Finding the Fourth Proportional to 12,928.59, 19,390.41 and 3,566.28

Step by Step Solution

1. Step 1: Write the proportion equation
   12,928.59 : 19,390.41 = 3,566.28 : x
2. Step 2: Convert to fraction form
   12,928.59/19,390.41 = 3,566.28/x
3. Step 3: Cross multiply
   12,928.59x = 19,390.41 × 3,566.28
4. Step 4: Simplify right side
   12,928.59x = 69,151,631.37
5. Step 5: Solve for x
   x = 69,151,631.37/12,928.59
6. Step 6: Final answer
   x = 5,348.74