Finding the Fourth Proportional to 13,544.81, 18,691.89 and 7,576.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,544.81 : 18,691.89 = 7,576.10 : x
2. Step 2: Convert to fraction form
   13,544.81/18,691.89 = 7,576.10/x
3. Step 3: Cross multiply
   13,544.81x = 18,691.89 × 7,576.10
4. Step 4: Simplify right side
   13,544.81x = 141,611,627.83
5. Step 5: Solve for x
   x = 141,611,627.83/13,544.81
6. Step 6: Final answer
   x = 10,455.05