Finding the Fourth Proportional to 214,019.62, 321,043.25 and 71,859.15

Step by Step Solution

1. Step 1: Write the proportion equation
   214,019.62 : 321,043.25 = 71,859.15 : x
2. Step 2: Convert to fraction form
   214,019.62/321,043.25 = 71,859.15/x
3. Step 3: Cross multiply
   214,019.62x = 321,043.25 × 71,859.15
4. Step 4: Simplify right side
   214,019.62x = 23,069,895,237.89
5. Step 5: Solve for x
   x = 23,069,895,237.89/214,019.62
6. Step 6: Final answer
   x = 107,793.37