Finding the Fourth Proportional to 47,788.89, 65,952.14 and 28,669.50

Step by Step Solution

1. Step 1: Write the proportion equation
   47,788.89 : 65,952.14 = 28,669.50 : x
2. Step 2: Convert to fraction form
   47,788.89/65,952.14 = 28,669.50/x
3. Step 3: Cross multiply
   47,788.89x = 65,952.14 × 28,669.50
4. Step 4: Simplify right side
   47,788.89x = 1,890,814,734.38
5. Step 5: Solve for x
   x = 1,890,814,734.38/47,788.89
6. Step 6: Final answer
   x = 39,565.99