Finding the Fourth Proportional to 329,139, 454,211.82 and 178,236

Step by Step Solution

1. Step 1: Write the proportion equation
   329,139 : 454,211.82 = 178,236 : x
2. Step 2: Convert to fraction form
   329,139/454,211.82 = 178,236/x
3. Step 3: Cross multiply
   329,139x = 454,211.82 × 178,236
4. Step 4: Simplify right side
   329,139x = 80,956,897,949.52
5. Step 5: Solve for x
   x = 80,956,897,949.52/329,139
6. Step 6: Final answer
   x = 245,965.68