Finding the Fourth Proportional to 8,738.16, 13,087.56 and 5,031.60

Step by Step Solution

1. Step 1: Write the proportion equation
   8,738.16 : 13,087.56 = 5,031.60 : x
2. Step 2: Convert to fraction form
   8,738.16/13,087.56 = 5,031.60/x
3. Step 3: Cross multiply
   8,738.16x = 13,087.56 × 5,031.60
4. Step 4: Simplify right side
   8,738.16x = 65,851,366.90
5. Step 5: Solve for x
   x = 65,851,366.90/8,738.16
6. Step 6: Final answer
   x = 7,536.07