Finding the Fourth Proportional to 316,059.57, 436,514.27 and 292,144.72

Step by Step Solution

1. Step 1: Write the proportion equation
   316,059.57 : 436,514.27 = 292,144.72 : x
2. Step 2: Convert to fraction form
   316,059.57/436,514.27 = 292,144.72/x
3. Step 3: Cross multiply
   316,059.57x = 436,514.27 × 292,144.72
4. Step 4: Simplify right side
   316,059.57x = 127,525,339,185.15
5. Step 5: Solve for x
   x = 127,525,339,185.15/316,059.57
6. Step 6: Final answer
   x = 403,485.14