Finding the Fourth Proportional to 382,272.72, 527,549.89 and 210,203.78

Step by Step Solution

1. Step 1: Write the proportion equation
   382,272.72 : 527,549.89 = 210,203.78 : x
2. Step 2: Convert to fraction form
   382,272.72/527,549.89 = 210,203.78/x
3. Step 3: Cross multiply
   382,272.72x = 527,549.89 × 210,203.78
4. Step 4: Simplify right side
   382,272.72x = 110,892,981,016.58
5. Step 5: Solve for x
   x = 110,892,981,016.58/382,272.72
6. Step 6: Final answer
   x = 290,088.66