Finding the Fourth Proportional to 17,514.54, 26,283.71 and 7,128.18

Step by Step Solution

1. Step 1: Write the proportion equation
   17,514.54 : 26,283.71 = 7,128.18 : x
2. Step 2: Convert to fraction form
   17,514.54/26,283.71 = 7,128.18/x
3. Step 3: Cross multiply
   17,514.54x = 26,283.71 × 7,128.18
4. Step 4: Simplify right side
   17,514.54x = 187,355,015.95
5. Step 5: Solve for x
   x = 187,355,015.95/17,514.54
6. Step 6: Final answer
   x = 10,697.11