Finding the Fourth Proportional to 382,016.05, 527,191.59 and 209,932.72

Step by Step Solution

1. Step 1: Write the proportion equation
   382,016.05 : 527,191.59 = 209,932.72 : x
2. Step 2: Convert to fraction form
   382,016.05/527,191.59 = 209,932.72/x
3. Step 3: Cross multiply
   382,016.05x = 527,191.59 × 209,932.72
4. Step 4: Simplify right side
   382,016.05x = 110,674,764,449.83
5. Step 5: Solve for x
   x = 110,674,764,449.83/382,016.05
6. Step 6: Final answer
   x = 289,712.34