Finding the Fourth Proportional to 49,259.49, 67,978.17 and 28,038.75

Step by Step Solution

1. Step 1: Write the proportion equation
   49,259.49 : 67,978.17 = 28,038.75 : x
2. Step 2: Convert to fraction form
   49,259.49/67,978.17 = 28,038.75/x
3. Step 3: Cross multiply
   49,259.49x = 67,978.17 × 28,038.75
4. Step 4: Simplify right side
   49,259.49x = 1,906,022,914.09
5. Step 5: Solve for x
   x = 1,906,022,914.09/49,259.49
6. Step 6: Final answer
   x = 38,693.52