Finding the Fourth Proportional to 257,498.96, 354,903.88 and 171,303.76

Step by Step Solution

1. Step 1: Write the proportion equation
   257,498.96 : 354,903.88 = 171,303.76 : x
2. Step 2: Convert to fraction form
   257,498.96/354,903.88 = 171,303.76/x
3. Step 3: Cross multiply
   257,498.96x = 354,903.88 × 171,303.76
4. Step 4: Simplify right side
   257,498.96x = 60,796,369,082.59
5. Step 5: Solve for x
   x = 60,796,369,082.59/257,498.96
6. Step 6: Final answer
   x = 236,103.36