Finding the Fourth Proportional to 309,494.72, 427,104 and 175,358.72

Step by Step Solution

1. Step 1: Write the proportion equation
   309,494.72 : 427,104 = 175,358.72 : x
2. Step 2: Convert to fraction form
   309,494.72/427,104 = 175,358.72/x
3. Step 3: Cross multiply
   309,494.72x = 427,104 × 175,358.72
4. Step 4: Simplify right side
   309,494.72x = 74,896,410,746.88
5. Step 5: Solve for x
   x = 74,896,410,746.88/309,494.72
6. Step 6: Final answer
   x = 241,995.76