Finding the Fourth Proportional to 11,388.79, 17,086.83 and 9,535.51

Step by Step Solution

1. Step 1: Write the proportion equation
   11,388.79 : 17,086.83 = 9,535.51 : x
2. Step 2: Convert to fraction form
   11,388.79/17,086.83 = 9,535.51/x
3. Step 3: Cross multiply
   11,388.79x = 17,086.83 × 9,535.51
4. Step 4: Simplify right side
   11,388.79x = 162,931,638.33
5. Step 5: Solve for x
   x = 162,931,638.33/11,388.79
6. Step 6: Final answer
   x = 14,306.32