Finding the Fourth Proportional to 72,042.14, 99,422.04 and 40,210.76

Step by Step Solution

1. Step 1: Write the proportion equation
   72,042.14 : 99,422.04 = 40,210.76 : x
2. Step 2: Convert to fraction form
   72,042.14/99,422.04 = 40,210.76/x
3. Step 3: Cross multiply
   72,042.14x = 99,422.04 × 40,210.76
4. Step 4: Simplify right side
   72,042.14x = 3,997,835,789.15
5. Step 5: Solve for x
   x = 3,997,835,789.15/72,042.14
6. Step 6: Final answer
   x = 55,493.02