Finding the Fourth Proportional to 9,086.70, 12,552.39 and 7,017.42

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.70 : 12,552.39 = 7,017.42 : x
2. Step 2: Convert to fraction form
   9,086.70/12,552.39 = 7,017.42/x
3. Step 3: Cross multiply
   9,086.70x = 12,552.39 × 7,017.42
4. Step 4: Simplify right side
   9,086.70x = 88,085,392.63
5. Step 5: Solve for x
   x = 88,085,392.63/9,086.70
6. Step 6: Final answer
   x = 9,693.88