Finding the Fourth Proportional to 37,978.07, 52,408.96 and 20,982.49

Step by Step Solution

1. Step 1: Write the proportion equation
   37,978.07 : 52,408.96 = 20,982.49 : x
2. Step 2: Convert to fraction form
   37,978.07/52,408.96 = 20,982.49/x
3. Step 3: Cross multiply
   37,978.07x = 52,408.96 × 20,982.49
4. Step 4: Simplify right side
   37,978.07x = 1,099,670,295.63
5. Step 5: Solve for x
   x = 1,099,670,295.63/37,978.07
6. Step 6: Final answer
   x = 28,955.41