Finding the Fourth Proportional to 12,394.30, 18,591.42 and 5,820.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,394.30 : 18,591.42 = 5,820.46 : x
2. Step 2: Convert to fraction form
   12,394.30/18,591.42 = 5,820.46/x
3. Step 3: Cross multiply
   12,394.30x = 18,591.42 × 5,820.46
4. Step 4: Simplify right side
   12,394.30x = 108,210,616.45
5. Step 5: Solve for x
   x = 108,210,616.45/12,394.30
6. Step 6: Final answer
   x = 8,730.68