Finding the Fourth Proportional to 72,414.82, 99,936.56 and 40,585.77

Step by Step Solution

1. Step 1: Write the proportion equation
   72,414.82 : 99,936.56 = 40,585.77 : x
2. Step 2: Convert to fraction form
   72,414.82/99,936.56 = 40,585.77/x
3. Step 3: Cross multiply
   72,414.82x = 99,936.56 × 40,585.77
4. Step 4: Simplify right side
   72,414.82x = 4,056,001,536.14
5. Step 5: Solve for x
   x = 4,056,001,536.14/72,414.82
6. Step 6: Final answer
   x = 56,010.66