Finding the Fourth Proportional to 72,116.91, 99,522.06 and 40,282.08

Step by Step Solution

1. Step 1: Write the proportion equation
   72,116.91 : 99,522.06 = 40,282.08 : x
2. Step 2: Convert to fraction form
   72,116.91/99,522.06 = 40,282.08/x
3. Step 3: Cross multiply
   72,116.91x = 99,522.06 × 40,282.08
4. Step 4: Simplify right side
   72,116.91x = 4,008,955,582.68
5. Step 5: Solve for x
   x = 4,008,955,582.68/72,116.91
6. Step 6: Final answer
   x = 55,589.67