Finding the Fourth Proportional to 13,484.26, 18,608.36 and 7,516.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,484.26 : 18,608.36 = 7,516.31 : x
2. Step 2: Convert to fraction form
   13,484.26/18,608.36 = 7,516.31/x
3. Step 3: Cross multiply
   13,484.26x = 18,608.36 × 7,516.31
4. Step 4: Simplify right side
   13,484.26x = 139,866,128.10
5. Step 5: Solve for x
   x = 139,866,128.10/13,484.26
6. Step 6: Final answer
   x = 10,372.55