Finding the Fourth Proportional to 72,140.34, 108,222.15 and 22,220.43

Step by Step Solution

1. Step 1: Write the proportion equation
   72,140.34 : 108,222.15 = 22,220.43 : x
2. Step 2: Convert to fraction form
   72,140.34/108,222.15 = 22,220.43/x
3. Step 3: Cross multiply
   72,140.34x = 108,222.15 × 22,220.43
4. Step 4: Simplify right side
   72,140.34x = 2,404,742,708.52
5. Step 5: Solve for x
   x = 2,404,742,708.52/72,140.34
6. Step 6: Final answer
   x = 33,334.23