Finding the Fourth Proportional to 12,461.31, 18,692.03 and 3,696.30

Step by Step Solution

1. Step 1: Write the proportion equation
   12,461.31 : 18,692.03 = 3,696.30 : x
2. Step 2: Convert to fraction form
   12,461.31/18,692.03 = 3,696.30/x
3. Step 3: Cross multiply
   12,461.31x = 18,692.03 × 3,696.30
4. Step 4: Simplify right side
   12,461.31x = 69,091,359.73
5. Step 5: Solve for x
   x = 69,091,359.73/12,461.31
6. Step 6: Final answer
   x = 5,544.47