Finding the Fourth Proportional to 9,016.17, 12,443.81 and 5,661.87

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.17 : 12,443.81 = 5,661.87 : x
2. Step 2: Convert to fraction form
   9,016.17/12,443.81 = 5,661.87/x
3. Step 3: Cross multiply
   9,016.17x = 12,443.81 × 5,661.87
4. Step 4: Simplify right side
   9,016.17x = 70,455,206.22
5. Step 5: Solve for x
   x = 70,455,206.22/9,016.17
6. Step 6: Final answer
   x = 7,814.32