Finding the Fourth Proportional to 74,747.51, 111,994.38 and 45,103.05

Step by Step Solution

1. Step 1: Write the proportion equation
   74,747.51 : 111,994.38 = 45,103.05 : x
2. Step 2: Convert to fraction form
   74,747.51/111,994.38 = 45,103.05/x
3. Step 3: Cross multiply
   74,747.51x = 111,994.38 × 45,103.05
4. Step 4: Simplify right side
   74,747.51x = 5,051,288,120.86
5. Step 5: Solve for x
   x = 5,051,288,120.86/74,747.51
6. Step 6: Final answer
   x = 67,578.02