Finding the Fourth Proportional to 504,974.72, 756,886.56 and 315,522.56

Step by Step Solution

1. Step 1: Write the proportion equation
   504,974.72 : 756,886.56 = 315,522.56 : x
2. Step 2: Convert to fraction form
   504,974.72/756,886.56 = 315,522.56/x
3. Step 3: Cross multiply
   504,974.72x = 756,886.56 × 315,522.56
4. Step 4: Simplify right side
   504,974.72x = 238,814,785,040.79
5. Step 5: Solve for x
   x = 238,814,785,040.79/504,974.72
6. Step 6: Final answer
   x = 472,924.24