Finding the Fourth Proportional to 9,017.79, 13,527.17 and 2,782.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,017.79 : 13,527.17 = 2,782.09 : x
2. Step 2: Convert to fraction form
   9,017.79/13,527.17 = 2,782.09/x
3. Step 3: Cross multiply
   9,017.79x = 13,527.17 × 2,782.09
4. Step 4: Simplify right side
   9,017.79x = 37,633,804.39
5. Step 5: Solve for x
   x = 37,633,804.39/9,017.79
6. Step 6: Final answer
   x = 4,173.28