Finding the Fourth Proportional to 11,256.50, 16,885.59 and 4,331

Step by Step Solution

1. Step 1: Write the proportion equation
   11,256.50 : 16,885.59 = 4,331 : x
2. Step 2: Convert to fraction form
   11,256.50/16,885.59 = 4,331/x
3. Step 3: Cross multiply
   11,256.50x = 16,885.59 × 4,331
4. Step 4: Simplify right side
   11,256.50x = 73,131,490.29
5. Step 5: Solve for x
   x = 73,131,490.29/11,256.50
6. Step 6: Final answer
   x = 6,496.82