Finding the Fourth Proportional to 37,142.96, 55,715.76 and 12,183.60

Step by Step Solution

1. Step 1: Write the proportion equation
   37,142.96 : 55,715.76 = 12,183.60 : x
2. Step 2: Convert to fraction form
   37,142.96/55,715.76 = 12,183.60/x
3. Step 3: Cross multiply
   37,142.96x = 55,715.76 × 12,183.60
4. Step 4: Simplify right side
   37,142.96x = 678,818,533.54
5. Step 5: Solve for x
   x = 678,818,533.54/37,142.96
6. Step 6: Final answer
   x = 18,275.83