Finding the Fourth Proportional to 195,887.42, 293,375.37 and 190,499.90

Step by Step Solution

1. Step 1: Write the proportion equation
   195,887.42 : 293,375.37 = 190,499.90 : x
2. Step 2: Convert to fraction form
   195,887.42/293,375.37 = 190,499.90/x
3. Step 3: Cross multiply
   195,887.42x = 293,375.37 × 190,499.90
4. Step 4: Simplify right side
   195,887.42x = 55,887,978,647.46
5. Step 5: Solve for x
   x = 55,887,978,647.46/195,887.42
6. Step 6: Final answer
   x = 285,306.62