Finding the Fourth Proportional to 37,974.55, 52,404.63 and 20,979.89

Step by Step Solution

1. Step 1: Write the proportion equation
   37,974.55 : 52,404.63 = 20,979.89 : x
2. Step 2: Convert to fraction form
   37,974.55/52,404.63 = 20,979.89/x
3. Step 3: Cross multiply
   37,974.55x = 52,404.63 × 20,979.89
4. Step 4: Simplify right side
   37,974.55x = 1,099,443,287.72
5. Step 5: Solve for x
   x = 1,099,443,287.72/37,974.55
6. Step 6: Final answer
   x = 28,952.11