Finding the Fourth Proportional to 67,286.42, 101,018.91 and 57,488.66

Step by Step Solution

1. Step 1: Write the proportion equation
   67,286.42 : 101,018.91 = 57,488.66 : x
2. Step 2: Convert to fraction form
   67,286.42/101,018.91 = 57,488.66/x
3. Step 3: Cross multiply
   67,286.42x = 101,018.91 × 57,488.66
4. Step 4: Simplify right side
   67,286.42x = 5,807,441,770.56
5. Step 5: Solve for x
   x = 5,807,441,770.56/67,286.42
6. Step 6: Final answer
   x = 86,309.27