Finding the Fourth Proportional to 72,044.75, 99,433.28 and 42,236.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,044.75 : 99,433.28 = 42,236.75 : x
2. Step 2: Convert to fraction form
   72,044.75/99,433.28 = 42,236.75/x
3. Step 3: Cross multiply
   72,044.75x = 99,433.28 × 42,236.75
4. Step 4: Simplify right side
   72,044.75x = 4,199,738,589.04
5. Step 5: Solve for x
   x = 4,199,738,589.04/72,044.75
6. Step 6: Final answer
   x = 58,293.47