Finding the Fourth Proportional to 245,123.30, 367,296.15 and 161,920.10

Step by Step Solution

1. Step 1: Write the proportion equation
   245,123.30 : 367,296.15 = 161,920.10 : x
2. Step 2: Convert to fraction form
   245,123.30/367,296.15 = 161,920.10/x
3. Step 3: Cross multiply
   245,123.30x = 367,296.15 × 161,920.10
4. Step 4: Simplify right side
   245,123.30x = 59,472,629,337.62
5. Step 5: Solve for x
   x = 59,472,629,337.62/245,123.30
6. Step 6: Final answer
   x = 242,623.32