Finding the Fourth Proportional to 52,108.89, 71,909.78 and 28,235.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,108.89 : 71,909.78 = 28,235.52 : x
2. Step 2: Convert to fraction form
   52,108.89/71,909.78 = 28,235.52/x
3. Step 3: Cross multiply
   52,108.89x = 71,909.78 × 28,235.52
4. Step 4: Simplify right side
   52,108.89x = 2,030,409,890.21
5. Step 5: Solve for x
   x = 2,030,409,890.21/52,108.89
6. Step 6: Final answer
   x = 38,964.75