Finding the Fourth Proportional to 72,076.54, 99,470.52 and 40,244.74

Step by Step Solution

1. Step 1: Write the proportion equation
   72,076.54 : 99,470.52 = 40,244.74 : x
2. Step 2: Convert to fraction form
   72,076.54/99,470.52 = 40,244.74/x
3. Step 3: Cross multiply
   72,076.54x = 99,470.52 × 40,244.74
4. Step 4: Simplify right side
   72,076.54x = 4,003,165,215.06
5. Step 5: Solve for x
   x = 4,003,165,215.06/72,076.54
6. Step 6: Final answer
   x = 55,540.47