Finding the Fourth Proportional to 15,467.67, 21,343.59 and 8,662.10

Step by Step Solution

1. Step 1: Write the proportion equation
   15,467.67 : 21,343.59 = 8,662.10 : x
2. Step 2: Convert to fraction form
   15,467.67/21,343.59 = 8,662.10/x
3. Step 3: Cross multiply
   15,467.67x = 21,343.59 × 8,662.10
4. Step 4: Simplify right side
   15,467.67x = 184,880,204.22
5. Step 5: Solve for x
   x = 184,880,204.22/15,467.67
6. Step 6: Final answer
   x = 11,952.69