Finding the Fourth Proportional to 37,105.62, 55,661.60 and 20,477.13

Step by Step Solution

1. Step 1: Write the proportion equation
   37,105.62 : 55,661.60 = 20,477.13 : x
2. Step 2: Convert to fraction form
   37,105.62/55,661.60 = 20,477.13/x
3. Step 3: Cross multiply
   37,105.62x = 55,661.60 × 20,477.13
4. Step 4: Simplify right side
   37,105.62x = 1,139,789,819.21
5. Step 5: Solve for x
   x = 1,139,789,819.21/37,105.62
6. Step 6: Final answer
   x = 30,717.44