Finding the Fourth Proportional to 493,131.75, 739,730.76 and 173,244.72

Step by Step Solution

1. Step 1: Write the proportion equation
   493,131.75 : 739,730.76 = 173,244.72 : x
2. Step 2: Convert to fraction form
   493,131.75/739,730.76 = 173,244.72/x
3. Step 3: Cross multiply
   493,131.75x = 739,730.76 × 173,244.72
4. Step 4: Simplify right side
   493,131.75x = 128,154,448,391.59
5. Step 5: Solve for x
   x = 128,154,448,391.59/493,131.75
6. Step 6: Final answer
   x = 259,878.72