Finding the Fourth Proportional to 72,635.52, 108,960.36 and 28,265.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,635.52 : 108,960.36 = 28,265.88 : x
2. Step 2: Convert to fraction form
   72,635.52/108,960.36 = 28,265.88/x
3. Step 3: Cross multiply
   72,635.52x = 108,960.36 × 28,265.88
4. Step 4: Simplify right side
   72,635.52x = 3,079,860,460.52
5. Step 5: Solve for x
   x = 3,079,860,460.52/72,635.52
6. Step 6: Final answer
   x = 42,401.58