Finding the Fourth Proportional to 71,848.63, 99,149.83 and 40,016.85

Step by Step Solution

1. Step 1: Write the proportion equation
   71,848.63 : 99,149.83 = 40,016.85 : x
2. Step 2: Convert to fraction form
   71,848.63/99,149.83 = 40,016.85/x
3. Step 3: Cross multiply
   71,848.63x = 99,149.83 × 40,016.85
4. Step 4: Simplify right side
   71,848.63x = 3,967,663,570.35
5. Step 5: Solve for x
   x = 3,967,663,570.35/71,848.63
6. Step 6: Final answer
   x = 55,222.53