Finding the Fourth Proportional to 50,116.86, 69,164.64 and 28,897.56

Step by Step Solution

1. Step 1: Write the proportion equation
   50,116.86 : 69,164.64 = 28,897.56 : x
2. Step 2: Convert to fraction form
   50,116.86/69,164.64 = 28,897.56/x
3. Step 3: Cross multiply
   50,116.86x = 69,164.64 × 28,897.56
4. Step 4: Simplify right side
   50,116.86x = 1,998,689,334.28
5. Step 5: Solve for x
   x = 1,998,689,334.28/50,116.86
6. Step 6: Final answer
   x = 39,880.58