Finding the Fourth Proportional to 37,630.74, 56,406.60 and 12,662.12

Step by Step Solution

1. Step 1: Write the proportion equation
   37,630.74 : 56,406.60 = 12,662.12 : x
2. Step 2: Convert to fraction form
   37,630.74/56,406.60 = 12,662.12/x
3. Step 3: Cross multiply
   37,630.74x = 56,406.60 × 12,662.12
4. Step 4: Simplify right side
   37,630.74x = 714,227,279.01
5. Step 5: Solve for x
   x = 714,227,279.01/37,630.74
6. Step 6: Final answer
   x = 18,979.89