Finding the Fourth Proportional to 37,082.76, 55,619.48 and 12,120.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,082.76 : 55,619.48 = 12,120.72 : x
2. Step 2: Convert to fraction form
   37,082.76/55,619.48 = 12,120.72/x
3. Step 3: Cross multiply
   37,082.76x = 55,619.48 × 12,120.72
4. Step 4: Simplify right side
   37,082.76x = 674,148,143.63
5. Step 5: Solve for x
   x = 674,148,143.63/37,082.76
6. Step 6: Final answer
   x = 18,179.56