Finding the Fourth Proportional to 37,111.74, 55,673.55 and 12,145.92

Step by Step Solution

1. Step 1: Write the proportion equation
   37,111.74 : 55,673.55 = 12,145.92 : x
2. Step 2: Convert to fraction form
   37,111.74/55,673.55 = 12,145.92/x
3. Step 3: Cross multiply
   37,111.74x = 55,673.55 × 12,145.92
4. Step 4: Simplify right side
   37,111.74x = 676,206,484.42
5. Step 5: Solve for x
   x = 676,206,484.42/37,111.74
6. Step 6: Final answer
   x = 18,220.82