Finding the Fourth Proportional to 21,688.50, 32,537.34 and 12,333

Step by Step Solution

1. Step 1: Write the proportion equation
   21,688.50 : 32,537.34 = 12,333 : x
2. Step 2: Convert to fraction form
   21,688.50/32,537.34 = 12,333/x
3. Step 3: Cross multiply
   21,688.50x = 32,537.34 × 12,333
4. Step 4: Simplify right side
   21,688.50x = 401,283,014.22
5. Step 5: Solve for x
   x = 401,283,014.22/21,688.50
6. Step 6: Final answer
   x = 18,502.11