Finding the Fourth Proportional to 13,288.28, 19,932.42 and 5,488.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,288.28 : 19,932.42 = 5,488.52 : x
2. Step 2: Convert to fraction form
   13,288.28/19,932.42 = 5,488.52/x
3. Step 3: Cross multiply
   13,288.28x = 19,932.42 × 5,488.52
4. Step 4: Simplify right side
   13,288.28x = 109,399,485.82
5. Step 5: Solve for x
   x = 109,399,485.82/13,288.28
6. Step 6: Final answer
   x = 8,232.78