Finding the Fourth Proportional to 72,132.89, 108,211.68 and 22,212.05

Step by Step Solution

1. Step 1: Write the proportion equation
   72,132.89 : 108,211.68 = 22,212.05 : x
2. Step 2: Convert to fraction form
   72,132.89/108,211.68 = 22,212.05/x
3. Step 3: Cross multiply
   72,132.89x = 108,211.68 × 22,212.05
4. Step 4: Simplify right side
   72,132.89x = 2,403,602,705.69
5. Step 5: Solve for x
   x = 2,403,602,705.69/72,132.89
6. Step 6: Final answer
   x = 33,321.87