Finding the Fourth Proportional to 9,016.84, 13,521.60 and 3,172.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.84 : 13,521.60 = 3,172.08 : x
2. Step 2: Convert to fraction form
   9,016.84/13,521.60 = 3,172.08/x
3. Step 3: Cross multiply
   9,016.84x = 13,521.60 × 3,172.08
4. Step 4: Simplify right side
   9,016.84x = 42,891,596.93
5. Step 5: Solve for x
   x = 42,891,596.93/9,016.84
6. Step 6: Final answer
   x = 4,756.83