Finding the Fourth Proportional to 49,776.30, 68,700.69 and 28,569.42

Step by Step Solution

1. Step 1: Write the proportion equation
   49,776.30 : 68,700.69 = 28,569.42 : x
2. Step 2: Convert to fraction form
   49,776.30/68,700.69 = 28,569.42/x
3. Step 3: Cross multiply
   49,776.30x = 68,700.69 × 28,569.42
4. Step 4: Simplify right side
   49,776.30x = 1,962,738,866.90
5. Step 5: Solve for x
   x = 1,962,738,866.90/49,776.30
6. Step 6: Final answer
   x = 39,431.19