Finding the Fourth Proportional to 9,016.56, 12,448.71 and 8,070.75

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.56 : 12,448.71 = 8,070.75 : x
2. Step 2: Convert to fraction form
   9,016.56/12,448.71 = 8,070.75/x
3. Step 3: Cross multiply
   9,016.56x = 12,448.71 × 8,070.75
4. Step 4: Simplify right side
   9,016.56x = 100,470,426.23
5. Step 5: Solve for x
   x = 100,470,426.23/9,016.56
6. Step 6: Final answer
   x = 11,142.88