Finding the Fourth Proportional to 12,514.14, 17,264.39 and 7,477.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,514.14 : 17,264.39 = 7,477.20 : x
2. Step 2: Convert to fraction form
   12,514.14/17,264.39 = 7,477.20/x
3. Step 3: Cross multiply
   12,514.14x = 17,264.39 × 7,477.20
4. Step 4: Simplify right side
   12,514.14x = 129,089,259.52
5. Step 5: Solve for x
   x = 129,089,259.52/12,514.14
6. Step 6: Final answer
   x = 10,315.47