Finding the Fourth Proportional to 37,578.52, 51,846.60 and 21,660.82

Step by Step Solution

1. Step 1: Write the proportion equation
   37,578.52 : 51,846.60 = 21,660.82 : x
2. Step 2: Convert to fraction form
   37,578.52/51,846.60 = 21,660.82/x
3. Step 3: Cross multiply
   37,578.52x = 51,846.60 × 21,660.82
4. Step 4: Simplify right side
   37,578.52x = 1,123,039,870.21
5. Step 5: Solve for x
   x = 1,123,039,870.21/37,578.52
6. Step 6: Final answer
   x = 29,885.15