Finding the Fourth Proportional to 37,406.63, 56,119.09 and 12,446.61

Step by Step Solution

1. Step 1: Write the proportion equation
   37,406.63 : 56,119.09 = 12,446.61 : x
2. Step 2: Convert to fraction form
   37,406.63/56,119.09 = 12,446.61/x
3. Step 3: Cross multiply
   37,406.63x = 56,119.09 × 12,446.61
4. Step 4: Simplify right side
   37,406.63x = 698,492,426.78
5. Step 5: Solve for x
   x = 698,492,426.78/37,406.63
6. Step 6: Final answer
   x = 18,672.96