Finding the Fourth Proportional to 37,109.96, 55,662.78 and 12,166.28

Step by Step Solution

1. Step 1: Write the proportion equation
   37,109.96 : 55,662.78 = 12,166.28 : x
2. Step 2: Convert to fraction form
   37,109.96/55,662.78 = 12,166.28/x
3. Step 3: Cross multiply
   37,109.96x = 55,662.78 × 12,166.28
4. Step 4: Simplify right side
   37,109.96x = 677,208,967.06
5. Step 5: Solve for x
   x = 677,208,967.06/37,109.96
6. Step 6: Final answer
   x = 18,248.71