Finding the Fourth Proportional to 11,256.86, 15,522.78 and 9,668.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,256.86 : 15,522.78 = 9,668.75 : x
2. Step 2: Convert to fraction form
   11,256.86/15,522.78 = 9,668.75/x
3. Step 3: Cross multiply
   11,256.86x = 15,522.78 × 9,668.75
4. Step 4: Simplify right side
   11,256.86x = 150,085,801.51
5. Step 5: Solve for x
   x = 150,085,801.51/11,256.86
6. Step 6: Final answer
   x = 13,332.84