Finding the Fourth Proportional to 37,321.72, 51,503.88 and 20,554.72

Step by Step Solution

1. Step 1: Write the proportion equation
   37,321.72 : 51,503.88 = 20,554.72 : x
2. Step 2: Convert to fraction form
   37,321.72/51,503.88 = 20,554.72/x
3. Step 3: Cross multiply
   37,321.72x = 51,503.88 × 20,554.72
4. Step 4: Simplify right side
   37,321.72x = 1,058,647,832.31
5. Step 5: Solve for x
   x = 1,058,647,832.31/37,321.72
6. Step 6: Final answer
   x = 28,365.46