Finding the Fourth Proportional to 12,736.16, 17,575.62 and 7,431.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,736.16 : 17,575.62 = 7,431.50 : x
2. Step 2: Convert to fraction form
   12,736.16/17,575.62 = 7,431.50/x
3. Step 3: Cross multiply
   12,736.16x = 17,575.62 × 7,431.50
4. Step 4: Simplify right side
   12,736.16x = 130,613,220.03
5. Step 5: Solve for x
   x = 130,613,220.03/12,736.16
6. Step 6: Final answer
   x = 10,255.31