Finding the Fourth Proportional to 72,894.29, 100,559.72 and 42,660.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,894.29 : 100,559.72 = 42,660.88 : x
2. Step 2: Convert to fraction form
   72,894.29/100,559.72 = 42,660.88/x
3. Step 3: Cross multiply
   72,894.29x = 100,559.72 × 42,660.88
4. Step 4: Simplify right side
   72,894.29x = 4,289,965,644.96
5. Step 5: Solve for x
   x = 4,289,965,644.96/72,894.29
6. Step 6: Final answer
   x = 58,851.88