Finding the Fourth Proportional to 76,168.82, 105,056.33 and 49,290.59

Step by Step Solution

1. Step 1: Write the proportion equation
   76,168.82 : 105,056.33 = 49,290.59 : x
2. Step 2: Convert to fraction form
   76,168.82/105,056.33 = 49,290.59/x
3. Step 3: Cross multiply
   76,168.82x = 105,056.33 × 49,290.59
4. Step 4: Simplify right side
   76,168.82x = 5,178,287,717.20
5. Step 5: Solve for x
   x = 5,178,287,717.20/76,168.82
6. Step 6: Final answer
   x = 67,984.35