Finding the Fourth Proportional to 21,692.85, 32,510.83 and 12,337.17

Step by Step Solution

1. Step 1: Write the proportion equation
   21,692.85 : 32,510.83 = 12,337.17 : x
2. Step 2: Convert to fraction form
   21,692.85/32,510.83 = 12,337.17/x
3. Step 3: Cross multiply
   21,692.85x = 32,510.83 × 12,337.17
4. Step 4: Simplify right side
   21,692.85x = 401,091,636.55
5. Step 5: Solve for x
   x = 401,091,636.55/21,692.85
6. Step 6: Final answer
   x = 18,489.58