Finding the Fourth Proportional to 221,797.04, 306,086.24 and 123,682.55

Step by Step Solution

1. Step 1: Write the proportion equation
   221,797.04 : 306,086.24 = 123,682.55 : x
2. Step 2: Convert to fraction form
   221,797.04/306,086.24 = 123,682.55/x
3. Step 3: Cross multiply
   221,797.04x = 306,086.24 × 123,682.55
4. Step 4: Simplify right side
   221,797.04x = 37,857,525,461.89
5. Step 5: Solve for x
   x = 37,857,525,461.89/221,797.04
6. Step 6: Final answer
   x = 170,685.44