Finding the Fourth Proportional to 214,111.58, 321,172.60 and 71,958.94

Step by Step Solution

1. Step 1: Write the proportion equation
   214,111.58 : 321,172.60 = 71,958.94 : x
2. Step 2: Convert to fraction form
   214,111.58/321,172.60 = 71,958.94/x
3. Step 3: Cross multiply
   214,111.58x = 321,172.60 × 71,958.94
4. Step 4: Simplify right side
   214,111.58x = 23,111,239,853.04
5. Step 5: Solve for x
   x = 23,111,239,853.04/214,111.58
6. Step 6: Final answer
   x = 107,940.17