Finding the Fourth Proportional to 201,443.30, 301,727.55 and 122,711.30

Step by Step Solution

1. Step 1: Write the proportion equation
   201,443.30 : 301,727.55 = 122,711.30 : x
2. Step 2: Convert to fraction form
   201,443.30/301,727.55 = 122,711.30/x
3. Step 3: Cross multiply
   201,443.30x = 301,727.55 × 122,711.30
4. Step 4: Simplify right side
   201,443.30x = 37,025,379,906.32
5. Step 5: Solve for x
   x = 37,025,379,906.32/201,443.30
6. Step 6: Final answer
   x = 183,800.50