Finding the Fourth Proportional to 12,488.47, 18,733.96 and 3,604.02

Step by Step Solution

1. Step 1: Write the proportion equation
   12,488.47 : 18,733.96 = 3,604.02 : x
2. Step 2: Convert to fraction form
   12,488.47/18,733.96 = 3,604.02/x
3. Step 3: Cross multiply
   12,488.47x = 18,733.96 × 3,604.02
4. Step 4: Simplify right side
   12,488.47x = 67,517,566.52
5. Step 5: Solve for x
   x = 67,517,566.52/12,488.47
6. Step 6: Final answer
   x = 5,406.39