Finding the Fourth Proportional to 13,467.66, 18,585.82 and 7,726.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,467.66 : 18,585.82 = 7,726.10 : x
2. Step 2: Convert to fraction form
   13,467.66/18,585.82 = 7,726.10/x
3. Step 3: Cross multiply
   13,467.66x = 18,585.82 × 7,726.10
4. Step 4: Simplify right side
   13,467.66x = 143,595,931.05
5. Step 5: Solve for x
   x = 143,595,931.05/13,467.66
6. Step 6: Final answer
   x = 10,662.28