Finding the Fourth Proportional to 37,123.72, 55,691.58 and 12,156.52

Step by Step Solution

1. Step 1: Write the proportion equation
   37,123.72 : 55,691.58 = 12,156.52 : x
2. Step 2: Convert to fraction form
   37,123.72/55,691.58 = 12,156.52/x
3. Step 3: Cross multiply
   37,123.72x = 55,691.58 × 12,156.52
4. Step 4: Simplify right side
   37,123.72x = 677,015,806.10
5. Step 5: Solve for x
   x = 677,015,806.10/37,123.72
6. Step 6: Final answer
   x = 18,236.74