Finding the Fourth Proportional to 12,513.26, 18,770.16 and 5,940.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,513.26 : 18,770.16 = 5,940.12 : x
2. Step 2: Convert to fraction form
   12,513.26/18,770.16 = 5,940.12/x
3. Step 3: Cross multiply
   12,513.26x = 18,770.16 × 5,940.12
4. Step 4: Simplify right side
   12,513.26x = 111,497,002.82
5. Step 5: Solve for x
   x = 111,497,002.82/12,513.26
6. Step 6: Final answer
   x = 8,910.31