Finding the Fourth Proportional to 37,082.74, 55,619.47 and 12,120.70

Step by Step Solution

1. Step 1: Write the proportion equation
   37,082.74 : 55,619.47 = 12,120.70 : x
2. Step 2: Convert to fraction form
   37,082.74/55,619.47 = 12,120.70/x
3. Step 3: Cross multiply
   37,082.74x = 55,619.47 × 12,120.70
4. Step 4: Simplify right side
   37,082.74x = 674,146,910.03
5. Step 5: Solve for x
   x = 674,146,910.03/37,082.74
6. Step 6: Final answer
   x = 18,179.53