Finding the Fourth Proportional to 272,074.50, 408,120.89 and 122,315.27

Step by Step Solution

1. Step 1: Write the proportion equation
   272,074.50 : 408,120.89 = 122,315.27 : x
2. Step 2: Convert to fraction form
   272,074.50/408,120.89 = 122,315.27/x
3. Step 3: Cross multiply
   272,074.50x = 408,120.89 × 122,315.27
4. Step 4: Simplify right side
   272,074.50x = 49,919,414,200.81
5. Step 5: Solve for x
   x = 49,919,414,200.81/272,074.50
6. Step 6: Final answer
   x = 183,477.00