Finding the Fourth Proportional to 49,116.51, 67,782.15 and 28,971.54

Step by Step Solution

1. Step 1: Write the proportion equation
   49,116.51 : 67,782.15 = 28,971.54 : x
2. Step 2: Convert to fraction form
   49,116.51/67,782.15 = 28,971.54/x
3. Step 3: Cross multiply
   49,116.51x = 67,782.15 × 28,971.54
4. Step 4: Simplify right side
   49,116.51x = 1,963,753,270.01
5. Step 5: Solve for x
   x = 1,963,753,270.01/49,116.51
6. Step 6: Final answer
   x = 39,981.53