Finding the Fourth Proportional to 436,831.32, 655,404.68 and 152,563.72

Step by Step Solution

1. Step 1: Write the proportion equation
   436,831.32 : 655,404.68 = 152,563.72 : x
2. Step 2: Convert to fraction form
   436,831.32/655,404.68 = 152,563.72/x
3. Step 3: Cross multiply
   436,831.32x = 655,404.68 × 152,563.72
4. Step 4: Simplify right side
   436,831.32x = 99,990,976,086.21
5. Step 5: Solve for x
   x = 99,990,976,086.21/436,831.32
6. Step 6: Final answer
   x = 228,900.66