Finding the Fourth Proportional to 67,378.86, 101,078.43 and 21,771.36

Step by Step Solution

1. Step 1: Write the proportion equation
   67,378.86 : 101,078.43 = 21,771.36 : x
2. Step 2: Convert to fraction form
   67,378.86/101,078.43 = 21,771.36/x
3. Step 3: Cross multiply
   67,378.86x = 101,078.43 × 21,771.36
4. Step 4: Simplify right side
   67,378.86x = 2,200,614,887.76
5. Step 5: Solve for x
   x = 2,200,614,887.76/67,378.86
6. Step 6: Final answer
   x = 32,660.32