Finding the Fourth Proportional to 50,192.52, 69,260.04 and 28,978.80

Step by Step Solution

1. Step 1: Write the proportion equation
   50,192.52 : 69,260.04 = 28,978.80 : x
2. Step 2: Convert to fraction form
   50,192.52/69,260.04 = 28,978.80/x
3. Step 3: Cross multiply
   50,192.52x = 69,260.04 × 28,978.80
4. Step 4: Simplify right side
   50,192.52x = 2,007,072,847.15
5. Step 5: Solve for x
   x = 2,007,072,847.15/50,192.52
6. Step 6: Final answer
   x = 39,987.49