Finding the Fourth Proportional to 12,574.37, 18,864.48 and 3,689.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,574.37 : 18,864.48 = 3,689.34 : x
2. Step 2: Convert to fraction form
   12,574.37/18,864.48 = 3,689.34/x
3. Step 3: Cross multiply
   12,574.37x = 18,864.48 × 3,689.34
4. Step 4: Simplify right side
   12,574.37x = 69,597,498.72
5. Step 5: Solve for x
   x = 69,597,498.72/12,574.37
6. Step 6: Final answer
   x = 5,534.87