Finding the Fourth Proportional to 311,436.77, 429,782.63 and 168,196.84

Step by Step Solution

1. Step 1: Write the proportion equation
   311,436.77 : 429,782.63 = 168,196.84 : x
2. Step 2: Convert to fraction form
   311,436.77/429,782.63 = 168,196.84/x
3. Step 3: Cross multiply
   311,436.77x = 429,782.63 × 168,196.84
4. Step 4: Simplify right side
   311,436.77x = 72,288,080,252.89
5. Step 5: Solve for x
   x = 72,288,080,252.89/311,436.77
6. Step 6: Final answer
   x = 232,111.58