Finding the Fourth Proportional to 436,648.06, 602,375.25 and 315,597.61

Step by Step Solution

1. Step 1: Write the proportion equation
   436,648.06 : 602,375.25 = 315,597.61 : x
2. Step 2: Convert to fraction form
   436,648.06/602,375.25 = 315,597.61/x
3. Step 3: Cross multiply
   436,648.06x = 602,375.25 × 315,597.61
4. Step 4: Simplify right side
   436,648.06x = 190,108,189,223.15
5. Step 5: Solve for x
   x = 190,108,189,223.15/436,648.06
6. Step 6: Final answer
   x = 435,380.82