Finding the Fourth Proportional to 37,076.78, 55,619.49 and 12,118.70

Step by Step Solution

1. Step 1: Write the proportion equation
   37,076.78 : 55,619.49 = 12,118.70 : x
2. Step 2: Convert to fraction form
   37,076.78/55,619.49 = 12,118.70/x
3. Step 3: Cross multiply
   37,076.78x = 55,619.49 × 12,118.70
4. Step 4: Simplify right side
   37,076.78x = 674,035,913.46
5. Step 5: Solve for x
   x = 674,035,913.46/37,076.78
6. Step 6: Final answer
   x = 18,179.46