Finding the Fourth Proportional to 570,630.72, 787,469.76 and 315,981.84

Step by Step Solution

1. Step 1: Write the proportion equation
   570,630.72 : 787,469.76 = 315,981.84 : x
2. Step 2: Convert to fraction form
   570,630.72/787,469.76 = 315,981.84/x
3. Step 3: Cross multiply
   570,630.72x = 787,469.76 × 315,981.84
4. Step 4: Simplify right side
   570,630.72x = 248,826,143,709.16
5. Step 5: Solve for x
   x = 248,826,143,709.16/570,630.72
6. Step 6: Final answer
   x = 436,054.59