Finding the Fourth Proportional to 37,731, 56,622.42 and 13,107

Step by Step Solution

1. Step 1: Write the proportion equation
   37,731 : 56,622.42 = 13,107 : x
2. Step 2: Convert to fraction form
   37,731/56,622.42 = 13,107/x
3. Step 3: Cross multiply
   37,731x = 56,622.42 × 13,107
4. Step 4: Simplify right side
   37,731x = 742,150,058.94
5. Step 5: Solve for x
   x = 742,150,058.94/37,731
6. Step 6: Final answer
   x = 19,669.50