Finding the Fourth Proportional to 9,513.43, 13,128.23 and 5,264.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,513.43 : 13,128.23 = 5,264.23 : x
2. Step 2: Convert to fraction form
   9,513.43/13,128.23 = 5,264.23/x
3. Step 3: Cross multiply
   9,513.43x = 13,128.23 × 5,264.23
4. Step 4: Simplify right side
   9,513.43x = 69,110,022.21
5. Step 5: Solve for x
   x = 69,110,022.21/9,513.43
6. Step 6: Final answer
   x = 7,264.47