Finding the Fourth Proportional to 354,196.56, 531,451.86 and 185,676.72

Step by Step Solution

1. Step 1: Write the proportion equation
   354,196.56 : 531,451.86 = 185,676.72 : x
2. Step 2: Convert to fraction form
   354,196.56/531,451.86 = 185,676.72/x
3. Step 3: Cross multiply
   354,196.56x = 531,451.86 × 185,676.72
4. Step 4: Simplify right side
   354,196.56x = 98,678,238,202.70
5. Step 5: Solve for x
   x = 98,678,238,202.70/354,196.56
6. Step 6: Final answer
   x = 278,597.39