Finding the Fourth Proportional to 37,978.65, 52,410.24 and 20,984.04

Step by Step Solution

1. Step 1: Write the proportion equation
   37,978.65 : 52,410.24 = 20,984.04 : x
2. Step 2: Convert to fraction form
   37,978.65/52,410.24 = 20,984.04/x
3. Step 3: Cross multiply
   37,978.65x = 52,410.24 × 20,984.04
4. Step 4: Simplify right side
   37,978.65x = 1,099,778,572.57
5. Step 5: Solve for x
   x = 1,099,778,572.57/37,978.65
6. Step 6: Final answer
   x = 28,957.81