Finding the Fourth Proportional to 311,407.98, 429,743.00 and 168,168.02

Step by Step Solution

1. Step 1: Write the proportion equation
   311,407.98 : 429,743.00 = 168,168.02 : x
2. Step 2: Convert to fraction form
   311,407.98/429,743.00 = 168,168.02/x
3. Step 3: Cross multiply
   311,407.98x = 429,743.00 × 168,168.02
4. Step 4: Simplify right side
   311,407.98x = 72,269,026,429.30
5. Step 5: Solve for x
   x = 72,269,026,429.30/311,407.98
6. Step 6: Final answer
   x = 232,071.85