Finding the Fourth Proportional to 50,456.50, 69,632.13 and 28,100.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,456.50 : 69,632.13 = 28,100.50 : x
2. Step 2: Convert to fraction form
   50,456.50/69,632.13 = 28,100.50/x
3. Step 3: Cross multiply
   50,456.50x = 69,632.13 × 28,100.50
4. Step 4: Simplify right side
   50,456.50x = 1,956,697,669.07
5. Step 5: Solve for x
   x = 1,956,697,669.07/50,456.50
6. Step 6: Final answer
   x = 38,779.89