Finding the Fourth Proportional to 675,910.72, 932,738.28 and 385,515.72

Step by Step Solution

1. Step 1: Write the proportion equation
   675,910.72 : 932,738.28 = 385,515.72 : x
2. Step 2: Convert to fraction form
   675,910.72/932,738.28 = 385,515.72/x
3. Step 3: Cross multiply
   675,910.72x = 932,738.28 × 385,515.72
4. Step 4: Simplify right side
   675,910.72x = 359,585,269,585.76
5. Step 5: Solve for x
   x = 359,585,269,585.76/675,910.72
6. Step 6: Final answer
   x = 532,001.13