Finding the Fourth Proportional to 359,774.52, 496,547.18 and 208,959

Step by Step Solution

1. Step 1: Write the proportion equation
   359,774.52 : 496,547.18 = 208,959 : x
2. Step 2: Convert to fraction form
   359,774.52/496,547.18 = 208,959/x
3. Step 3: Cross multiply
   359,774.52x = 496,547.18 × 208,959
4. Step 4: Simplify right side
   359,774.52x = 103,758,002,185.62
5. Step 5: Solve for x
   x = 103,758,002,185.62/359,774.52
6. Step 6: Final answer
   x = 288,397.31