Finding the Fourth Proportional to 147,401.65, 221,100.39 and 84,086.62

Step by Step Solution

1. Step 1: Write the proportion equation
   147,401.65 : 221,100.39 = 84,086.62 : x
2. Step 2: Convert to fraction form
   147,401.65/221,100.39 = 84,086.62/x
3. Step 3: Cross multiply
   147,401.65x = 221,100.39 × 84,086.62
4. Step 4: Simplify right side
   147,401.65x = 18,591,584,475.78
5. Step 5: Solve for x
   x = 18,591,584,475.78/147,401.65
6. Step 6: Final answer
   x = 126,128.74