Finding the Fourth Proportional to 210,086.55, 315,061.25 and 67,898.42

Step by Step Solution

1. Step 1: Write the proportion equation
   210,086.55 : 315,061.25 = 67,898.42 : x
2. Step 2: Convert to fraction form
   210,086.55/315,061.25 = 67,898.42/x
3. Step 3: Cross multiply
   210,086.55x = 315,061.25 × 67,898.42
4. Step 4: Simplify right side
   210,086.55x = 21,392,159,163.43
5. Step 5: Solve for x
   x = 21,392,159,163.43/210,086.55
6. Step 6: Final answer
   x = 101,825.46