Finding the Fourth Proportional to 37,906.42, 52,310.28 and 21,993.61

Step by Step Solution

1. Step 1: Write the proportion equation
   37,906.42 : 52,310.28 = 21,993.61 : x
2. Step 2: Convert to fraction form
   37,906.42/52,310.28 = 21,993.61/x
3. Step 3: Cross multiply
   37,906.42x = 52,310.28 × 21,993.61
4. Step 4: Simplify right side
   37,906.42x = 1,150,491,897.31
5. Step 5: Solve for x
   x = 1,150,491,897.31/37,906.42
6. Step 6: Final answer
   x = 30,350.85