Finding the Fourth Proportional to 37,406.39, 56,118.72 and 12,446.37

Step by Step Solution

1. Step 1: Write the proportion equation
   37,406.39 : 56,118.72 = 12,446.37 : x
2. Step 2: Convert to fraction form
   37,406.39/56,118.72 = 12,446.37/x
3. Step 3: Cross multiply
   37,406.39x = 56,118.72 × 12,446.37
4. Step 4: Simplify right side
   37,406.39x = 698,474,353.05
5. Step 5: Solve for x
   x = 698,474,353.05/37,406.39
6. Step 6: Final answer
   x = 18,672.60