Finding the Fourth Proportional to 12,662.52, 17,469.36 and 7,627.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,662.52 : 17,469.36 = 7,627.20 : x
2. Step 2: Convert to fraction form
   12,662.52/17,469.36 = 7,627.20/x
3. Step 3: Cross multiply
   12,662.52x = 17,469.36 × 7,627.20
4. Step 4: Simplify right side
   12,662.52x = 133,242,302.59
5. Step 5: Solve for x
   x = 133,242,302.59/12,662.52
6. Step 6: Final answer
   x = 10,522.57