Finding the Fourth Proportional to 37,186.56, 51,317.46 and 20,419.56

Step by Step Solution

1. Step 1: Write the proportion equation
   37,186.56 : 51,317.46 = 20,419.56 : x
2. Step 2: Convert to fraction form
   37,186.56/51,317.46 = 20,419.56/x
3. Step 3: Cross multiply
   37,186.56x = 51,317.46 × 20,419.56
4. Step 4: Simplify right side
   37,186.56x = 1,047,879,953.52
5. Step 5: Solve for x
   x = 1,047,879,953.52/37,186.56
6. Step 6: Final answer
   x = 28,179.00