Finding the Fourth Proportional to 50,443.90, 69,611.20 and 28,937.25

Step by Step Solution

1. Step 1: Write the proportion equation
   50,443.90 : 69,611.20 = 28,937.25 : x
2. Step 2: Convert to fraction form
   50,443.90/69,611.20 = 28,937.25/x
3. Step 3: Cross multiply
   50,443.90x = 69,611.20 × 28,937.25
4. Step 4: Simplify right side
   50,443.90x = 2,014,356,624.86
5. Step 5: Solve for x
   x = 2,014,356,624.86/50,443.90
6. Step 6: Final answer
   x = 39,932.61