Finding the Fourth Proportional to 271,004.89, 406,426.32 and 81,414.55

Step by Step Solution

1. Step 1: Write the proportion equation
   271,004.89 : 406,426.32 = 81,414.55 : x
2. Step 2: Convert to fraction form
   271,004.89/406,426.32 = 81,414.55/x
3. Step 3: Cross multiply
   271,004.89x = 406,426.32 × 81,414.55
4. Step 4: Simplify right side
   271,004.89x = 33,089,015,950.96
5. Step 5: Solve for x
   x = 33,089,015,950.96/271,004.89
6. Step 6: Final answer
   x = 122,097.49