Finding the Fourth Proportional to 9,017.33, 12,447.39 and 8,071.45

Step by Step Solution

1. Step 1: Write the proportion equation
   9,017.33 : 12,447.39 = 8,071.45 : x
2. Step 2: Convert to fraction form
   9,017.33/12,447.39 = 8,071.45/x
3. Step 3: Cross multiply
   9,017.33x = 12,447.39 × 8,071.45
4. Step 4: Simplify right side
   9,017.33x = 100,468,486.02
5. Step 5: Solve for x
   x = 100,468,486.02/9,017.33
6. Step 6: Final answer
   x = 11,141.71