Finding the Fourth Proportional to 37,977.48, 52,411.98 and 20,983.21

Step by Step Solution

1. Step 1: Write the proportion equation
   37,977.48 : 52,411.98 = 20,983.21 : x
2. Step 2: Convert to fraction form
   37,977.48/52,411.98 = 20,983.21/x
3. Step 3: Cross multiply
   37,977.48x = 52,411.98 × 20,983.21
4. Step 4: Simplify right side
   37,977.48x = 1,099,771,582.86
5. Step 5: Solve for x
   x = 1,099,771,582.86/37,977.48
6. Step 6: Final answer
   x = 28,958.52