Finding the Fourth Proportional to 21,689.50, 32,538.84 and 12,334

Step by Step Solution

1. Step 1: Write the proportion equation
   21,689.50 : 32,538.84 = 12,334 : x
2. Step 2: Convert to fraction form
   21,689.50/32,538.84 = 12,334/x
3. Step 3: Cross multiply
   21,689.50x = 32,538.84 × 12,334
4. Step 4: Simplify right side
   21,689.50x = 401,334,052.56
5. Step 5: Solve for x
   x = 401,334,052.56/21,689.50
6. Step 6: Final answer
   x = 18,503.61