Finding the Fourth Proportional to 9,016.79, 13,525.67 and 2,781.09

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.79 : 13,525.67 = 2,781.09 : x
2. Step 2: Convert to fraction form
   9,016.79/13,525.67 = 2,781.09/x
3. Step 3: Cross multiply
   9,016.79x = 13,525.67 × 2,781.09
4. Step 4: Simplify right side
   9,016.79x = 37,616,112.53
5. Step 5: Solve for x
   x = 37,616,112.53/9,016.79
6. Step 6: Final answer
   x = 4,171.79