Finding the Fourth Proportional to 13,516.74, 18,653.10 and 7,548.42

Step by Step Solution

1. Step 1: Write the proportion equation
   13,516.74 : 18,653.10 = 7,548.42 : x
2. Step 2: Convert to fraction form
   13,516.74/18,653.10 = 7,548.42/x
3. Step 3: Cross multiply
   13,516.74x = 18,653.10 × 7,548.42
4. Step 4: Simplify right side
   13,516.74x = 140,801,433.10
5. Step 5: Solve for x
   x = 140,801,433.10/13,516.74
6. Step 6: Final answer
   x = 10,416.82