Finding the Fourth Proportional to 9,086.87, 13,608.43 and 6,156.29

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086.87 : 13,608.43 = 6,156.29 : x
2. Step 2: Convert to fraction form
   9,086.87/13,608.43 = 6,156.29/x
3. Step 3: Cross multiply
   9,086.87x = 13,608.43 × 6,156.29
4. Step 4: Simplify right side
   9,086.87x = 83,777,456.92
5. Step 5: Solve for x
   x = 83,777,456.92/9,086.87
6. Step 6: Final answer
   x = 9,219.62