Finding the Fourth Proportional to 37,979.28, 52,410.42 and 20,984.76

Step by Step Solution

1. Step 1: Write the proportion equation
   37,979.28 : 52,410.42 = 20,984.76 : x
2. Step 2: Convert to fraction form
   37,979.28/52,410.42 = 20,984.76/x
3. Step 3: Cross multiply
   37,979.28x = 52,410.42 × 20,984.76
4. Step 4: Simplify right side
   37,979.28x = 1,099,820,085.20
5. Step 5: Solve for x
   x = 1,099,820,085.20/37,979.28
6. Step 6: Final answer
   x = 28,958.42