Finding the Fourth Proportional to 13,429.27, 20,139.23 and 5,529.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,429.27 : 20,139.23 = 5,529.52 : x
2. Step 2: Convert to fraction form
   13,429.27/20,139.23 = 5,529.52/x
3. Step 3: Cross multiply
   13,429.27x = 20,139.23 × 5,529.52
4. Step 4: Simplify right side
   13,429.27x = 111,360,247.42
5. Step 5: Solve for x
   x = 111,360,247.42/13,429.27
6. Step 6: Final answer
   x = 8,292.35