Finding the Fourth Proportional to 72,276.09, 99,733.98 and 42,065.42

Step by Step Solution

1. Step 1: Write the proportion equation
   72,276.09 : 99,733.98 = 42,065.42 : x
2. Step 2: Convert to fraction form
   72,276.09/99,733.98 = 42,065.42/x
3. Step 3: Cross multiply
   72,276.09x = 99,733.98 × 42,065.42
4. Step 4: Simplify right side
   72,276.09x = 4,195,351,258.30
5. Step 5: Solve for x
   x = 4,195,351,258.30/72,276.09
6. Step 6: Final answer
   x = 58,046.18