Finding the Fourth Proportional to 12,380.58, 18,574.52 and 4,587.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,380.58 : 18,574.52 = 4,587.57 : x
2. Step 2: Convert to fraction form
   12,380.58/18,574.52 = 4,587.57/x
3. Step 3: Cross multiply
   12,380.58x = 18,574.52 × 4,587.57
4. Step 4: Simplify right side
   12,380.58x = 85,211,887.78
5. Step 5: Solve for x
   x = 85,211,887.78/12,380.58
6. Step 6: Final answer
   x = 6,882.71