Finding the Fourth Proportional to 82,090.45, 123,102.72 and 39,958.25

Step by Step Solution

1. Step 1: Write the proportion equation
   82,090.45 : 123,102.72 = 39,958.25 : x
2. Step 2: Convert to fraction form
   82,090.45/123,102.72 = 39,958.25/x
3. Step 3: Cross multiply
   82,090.45x = 123,102.72 × 39,958.25
4. Step 4: Simplify right side
   82,090.45x = 4,918,969,261.44
5. Step 5: Solve for x
   x = 4,918,969,261.44/82,090.45
6. Step 6: Final answer
   x = 59,921.33