Finding the Fourth Proportional to 50,091.76, 69,126.52 and 28,870.88

Step by Step Solution

1. Step 1: Write the proportion equation
   50,091.76 : 69,126.52 = 28,870.88 : x
2. Step 2: Convert to fraction form
   50,091.76/69,126.52 = 28,870.88/x
3. Step 3: Cross multiply
   50,091.76x = 69,126.52 × 28,870.88
4. Step 4: Simplify right side
   50,091.76x = 1,995,743,463.74
5. Step 5: Solve for x
   x = 1,995,743,463.74/50,091.76
6. Step 6: Final answer
   x = 39,841.75