Finding the Fourth Proportional to 12,304.42, 18,440.12 and 5,641.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,304.42 : 18,440.12 = 5,641.56 : x
2. Step 2: Convert to fraction form
   12,304.42/18,440.12 = 5,641.56/x
3. Step 3: Cross multiply
   12,304.42x = 18,440.12 × 5,641.56
4. Step 4: Simplify right side
   12,304.42x = 104,031,043.39
5. Step 5: Solve for x
   x = 104,031,043.39/12,304.42
6. Step 6: Final answer
   x = 8,454.77