Finding the Fourth Proportional to 355,570.10, 532,059.15 and 222,514.10

Step by Step Solution

1. Step 1: Write the proportion equation
   355,570.10 : 532,059.15 = 222,514.10 : x
2. Step 2: Convert to fraction form
   355,570.10/532,059.15 = 222,514.10/x
3. Step 3: Cross multiply
   355,570.10x = 532,059.15 × 222,514.10
4. Step 4: Simplify right side
   355,570.10x = 118,390,662,909.02
5. Step 5: Solve for x
   x = 118,390,662,909.02/355,570.10
6. Step 6: Final answer
   x = 332,960.12