Finding the Fourth Proportional to 37,424.82, 56,118.54 and 12,456.11

Step by Step Solution

1. Step 1: Write the proportion equation
   37,424.82 : 56,118.54 = 12,456.11 : x
2. Step 2: Convert to fraction form
   37,424.82/56,118.54 = 12,456.11/x
3. Step 3: Cross multiply
   37,424.82x = 56,118.54 × 12,456.11
4. Step 4: Simplify right side
   37,424.82x = 699,018,426.69
5. Step 5: Solve for x
   x = 699,018,426.69/37,424.82
6. Step 6: Final answer
   x = 18,677.94