Finding the Fourth Proportional to 50,686.77, 69,941.70 and 28,022.70

Step by Step Solution

1. Step 1: Write the proportion equation
   50,686.77 : 69,941.70 = 28,022.70 : x
2. Step 2: Convert to fraction form
   50,686.77/69,941.70 = 28,022.70/x
3. Step 3: Cross multiply
   50,686.77x = 69,941.70 × 28,022.70
4. Step 4: Simplify right side
   50,686.77x = 1,959,955,276.59
5. Step 5: Solve for x
   x = 1,959,955,276.59/50,686.77
6. Step 6: Final answer
   x = 38,667.99