Finding the Fourth Proportional to 37,171.03, 55,762.37 and 12,205.40

Step by Step Solution

1. Step 1: Write the proportion equation
   37,171.03 : 55,762.37 = 12,205.40 : x
2. Step 2: Convert to fraction form
   37,171.03/55,762.37 = 12,205.40/x
3. Step 3: Cross multiply
   37,171.03x = 55,762.37 × 12,205.40
4. Step 4: Simplify right side
   37,171.03x = 680,601,806.56
5. Step 5: Solve for x
   x = 680,601,806.56/37,171.03
6. Step 6: Final answer
   x = 18,310.01