Finding the Fourth Proportional to 12,309.52, 18,458.52 and 3,542.44

Step by Step Solution

1. Step 1: Write the proportion equation
   12,309.52 : 18,458.52 = 3,542.44 : x
2. Step 2: Convert to fraction form
   12,309.52/18,458.52 = 3,542.44/x
3. Step 3: Cross multiply
   12,309.52x = 18,458.52 × 3,542.44
4. Step 4: Simplify right side
   12,309.52x = 65,388,199.59
5. Step 5: Solve for x
   x = 65,388,199.59/12,309.52
6. Step 6: Final answer
   x = 5,312.00