Finding the Fourth Proportional to 49,111.40, 67,781.94 and 28,973.27

Step by Step Solution

1. Step 1: Write the proportion equation
   49,111.40 : 67,781.94 = 28,973.27 : x
2. Step 2: Convert to fraction form
   49,111.40/67,781.94 = 28,973.27/x
3. Step 3: Cross multiply
   49,111.40x = 67,781.94 × 28,973.27
4. Step 4: Simplify right side
   49,111.40x = 1,963,864,448.74
5. Step 5: Solve for x
   x = 1,963,864,448.74/49,111.40
6. Step 6: Final answer
   x = 39,987.96