Finding the Fourth Proportional to 37,474.72, 51,715.56 and 20,478.88

Step by Step Solution

1. Step 1: Write the proportion equation
   37,474.72 : 51,715.56 = 20,478.88 : x
2. Step 2: Convert to fraction form
   37,474.72/51,715.56 = 20,478.88/x
3. Step 3: Cross multiply
   37,474.72x = 51,715.56 × 20,478.88
4. Step 4: Simplify right side
   37,474.72x = 1,059,076,747.37
5. Step 5: Solve for x
   x = 1,059,076,747.37/37,474.72
6. Step 6: Final answer
   x = 28,261.10