Finding the Fourth Proportional to 355,900.68, 491,142.89 and 194,755.75

Step by Step Solution

1. Step 1: Write the proportion equation
   355,900.68 : 491,142.89 = 194,755.75 : x
2. Step 2: Convert to fraction form
   355,900.68/491,142.89 = 194,755.75/x
3. Step 3: Cross multiply
   355,900.68x = 491,142.89 × 194,755.75
4. Step 4: Simplify right side
   355,900.68x = 95,652,901,158.15
5. Step 5: Solve for x
   x = 95,652,901,158.15/355,900.68
6. Step 6: Final answer
   x = 268,762.91