Finding the Fourth Proportional to 271,171.05, 406,698.18 and 111,090.01

Step by Step Solution

1. Step 1: Write the proportion equation
   271,171.05 : 406,698.18 = 111,090.01 : x
2. Step 2: Convert to fraction form
   271,171.05/406,698.18 = 111,090.01/x
3. Step 3: Cross multiply
   271,171.05x = 406,698.18 × 111,090.01
4. Step 4: Simplify right side
   271,171.05x = 45,180,106,501.42
5. Step 5: Solve for x
   x = 45,180,106,501.42/271,171.05
6. Step 6: Final answer
   x = 166,611.10