Finding the Fourth Proportional to 103,791.98, 155,119.30 and 75,771.05

Step by Step Solution

1. Step 1: Write the proportion equation
   103,791.98 : 155,119.30 = 75,771.05 : x
2. Step 2: Convert to fraction form
   103,791.98/155,119.30 = 75,771.05/x
3. Step 3: Cross multiply
   103,791.98x = 155,119.30 × 75,771.05
4. Step 4: Simplify right side
   103,791.98x = 11,753,551,697.45
5. Step 5: Solve for x
   x = 11,753,551,697.45/103,791.98
6. Step 6: Final answer
   x = 113,241.42