Finding the Fourth Proportional to 52,709.61, 72,741 and 28,835.74

Step by Step Solution

1. Step 1: Write the proportion equation
   52,709.61 : 72,741 = 28,835.74 : x
2. Step 2: Convert to fraction form
   52,709.61/72,741 = 28,835.74/x
3. Step 3: Cross multiply
   52,709.61x = 72,741 × 28,835.74
4. Step 4: Simplify right side
   52,709.61x = 2,097,540,563.34
5. Step 5: Solve for x
   x = 2,097,540,563.34/52,709.61
6. Step 6: Final answer
   x = 39,794.27