Finding the Fourth Proportional to 50,116.86, 69,159.45 and 28,607.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,116.86 : 69,159.45 = 28,607.72 : x
2. Step 2: Convert to fraction form
   50,116.86/69,159.45 = 28,607.72/x
3. Step 3: Cross multiply
   50,116.86x = 69,159.45 × 28,607.72
4. Step 4: Simplify right side
   50,116.86x = 1,978,493,942.44
5. Step 5: Solve for x
   x = 1,978,493,942.44/50,116.86
6. Step 6: Final answer
   x = 39,477.61