Finding the Fourth Proportional to 311,485.01, 429,849.57 and 168,245.17

Step by Step Solution

1. Step 1: Write the proportion equation
   311,485.01 : 429,849.57 = 168,245.17 : x
2. Step 2: Convert to fraction form
   311,485.01/429,849.57 = 168,245.17/x
3. Step 3: Cross multiply
   311,485.01x = 429,849.57 × 168,245.17
4. Step 4: Simplify right side
   311,485.01x = 72,320,113,535.37
5. Step 5: Solve for x
   x = 72,320,113,535.37/311,485.01
6. Step 6: Final answer
   x = 232,178.48