Finding the Fourth Proportional to 9,172.16, 13,762.82 and 3,910.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,172.16 : 13,762.82 = 3,910.60 : x
2. Step 2: Convert to fraction form
   9,172.16/13,762.82 = 3,910.60/x
3. Step 3: Cross multiply
   9,172.16x = 13,762.82 × 3,910.60
4. Step 4: Simplify right side
   9,172.16x = 53,820,883.89
5. Step 5: Solve for x
   x = 53,820,883.89/9,172.16
6. Step 6: Final answer
   x = 5,867.85