Finding the Fourth Proportional to 37,603.98, 56,383.83 and 12,637.62

Step by Step Solution

1. Step 1: Write the proportion equation
   37,603.98 : 56,383.83 = 12,637.62 : x
2. Step 2: Convert to fraction form
   37,603.98/56,383.83 = 12,637.62/x
3. Step 3: Cross multiply
   37,603.98x = 56,383.83 × 12,637.62
4. Step 4: Simplify right side
   37,603.98x = 712,557,417.68
5. Step 5: Solve for x
   x = 712,557,417.68/37,603.98
6. Step 6: Final answer
   x = 18,948.99