Finding the Fourth Proportional to 67,066.28, 100,611.72 and 22,090.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,066.28 : 100,611.72 = 22,090.20 : x
2. Step 2: Convert to fraction form
   67,066.28/100,611.72 = 22,090.20/x
3. Step 3: Cross multiply
   67,066.28x = 100,611.72 × 22,090.20
4. Step 4: Simplify right side
   67,066.28x = 2,222,533,017.14
5. Step 5: Solve for x
   x = 2,222,533,017.14/67,066.28
6. Step 6: Final answer
   x = 33,139.35