Finding the Fourth Proportional to 37,438.86, 51,665.31 and 20,671.50

Step by Step Solution

1. Step 1: Write the proportion equation
   37,438.86 : 51,665.31 = 20,671.50 : x
2. Step 2: Convert to fraction form
   37,438.86/51,665.31 = 20,671.50/x
3. Step 3: Cross multiply
   37,438.86x = 51,665.31 × 20,671.50
4. Step 4: Simplify right side
   37,438.86x = 1,067,999,455.67
5. Step 5: Solve for x
   x = 1,067,999,455.67/37,438.86
6. Step 6: Final answer
   x = 28,526.50