Finding the Fourth Proportional to 147,839.18, 221,797.64 and 76,766.54

Step by Step Solution

1. Step 1: Write the proportion equation
   147,839.18 : 221,797.64 = 76,766.54 : x
2. Step 2: Convert to fraction form
   147,839.18/221,797.64 = 76,766.54/x
3. Step 3: Cross multiply
   147,839.18x = 221,797.64 × 76,766.54
4. Step 4: Simplify right side
   147,839.18x = 17,026,636,485.89
5. Step 5: Solve for x
   x = 17,026,636,485.89/147,839.18
6. Step 6: Final answer
   x = 115,169.99