Finding the Fourth Proportional to 13,581.72, 18,743.04 and 7,614

Step by Step Solution

1. Step 1: Write the proportion equation
   13,581.72 : 18,743.04 = 7,614 : x
2. Step 2: Convert to fraction form
   13,581.72/18,743.04 = 7,614/x
3. Step 3: Cross multiply
   13,581.72x = 18,743.04 × 7,614
4. Step 4: Simplify right side
   13,581.72x = 142,709,506.56
5. Step 5: Solve for x
   x = 142,709,506.56/13,581.72
6. Step 6: Final answer
   x = 10,507.47