Finding the Fourth Proportional to 37,123.02, 55,685.16 and 12,165.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,123.02 : 55,685.16 = 12,165.72 : x
2. Step 2: Convert to fraction form
   37,123.02/55,685.16 = 12,165.72/x
3. Step 3: Cross multiply
   37,123.02x = 55,685.16 × 12,165.72
4. Step 4: Simplify right side
   37,123.02x = 677,450,064.72
5. Step 5: Solve for x
   x = 677,450,064.72/37,123.02
6. Step 6: Final answer
   x = 18,248.79