Finding the Fourth Proportional to 309,358.72, 426,915.84 and 175,222.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,358.72 : 426,915.84 = 175,222.72 : x
2. Step 2: Convert to fraction form
   309,358.72/426,915.84 = 175,222.72/x
3. Step 3: Cross multiply
   309,358.72x = 426,915.84 × 175,222.72
4. Step 4: Simplify right side
   309,358.72x = 74,805,354,695.88
5. Step 5: Solve for x
   x = 74,805,354,695.88/309,358.72
6. Step 6: Final answer
   x = 241,807.81