Finding the Fourth Proportional to 37,642.05, 51,944.63 and 20,645.82

Step by Step Solution

1. Step 1: Write the proportion equation
   37,642.05 : 51,944.63 = 20,645.82 : x
2. Step 2: Convert to fraction form
   37,642.05/51,944.63 = 20,645.82/x
3. Step 3: Cross multiply
   37,642.05x = 51,944.63 × 20,645.82
4. Step 4: Simplify right side
   37,642.05x = 1,072,439,377.72
5. Step 5: Solve for x
   x = 1,072,439,377.72/37,642.05
6. Step 6: Final answer
   x = 28,490.46