Finding the Fourth Proportional to 37,109.20, 51,208.86 and 20,976.16

Step by Step Solution

1. Step 1: Write the proportion equation
   37,109.20 : 51,208.86 = 20,976.16 : x
2. Step 2: Convert to fraction form
   37,109.20/51,208.86 = 20,976.16/x
3. Step 3: Cross multiply
   37,109.20x = 51,208.86 × 20,976.16
4. Step 4: Simplify right side
   37,109.20x = 1,074,165,240.78
5. Step 5: Solve for x
   x = 1,074,165,240.78/37,109.20
6. Step 6: Final answer
   x = 28,946.06