Finding the Fourth Proportional to 49,111.38, 67,770.60 and 28,969.08

Step by Step Solution

1. Step 1: Write the proportion equation
   49,111.38 : 67,770.60 = 28,969.08 : x
2. Step 2: Convert to fraction form
   49,111.38/67,770.60 = 28,969.08/x
3. Step 3: Cross multiply
   49,111.38x = 67,770.60 × 28,969.08
4. Step 4: Simplify right side
   49,111.38x = 1,963,251,933.05
5. Step 5: Solve for x
   x = 1,963,251,933.05/49,111.38
6. Step 6: Final answer
   x = 39,975.50