Finding the Fourth Proportional to 75,007.72, 103,403.82 and 51,103.82

Step by Step Solution

1. Step 1: Write the proportion equation
   75,007.72 : 103,403.82 = 51,103.82 : x
2. Step 2: Convert to fraction form
   75,007.72/103,403.82 = 51,103.82/x
3. Step 3: Cross multiply
   75,007.72x = 103,403.82 × 51,103.82
4. Step 4: Simplify right side
   75,007.72x = 5,284,330,204.59
5. Step 5: Solve for x
   x = 5,284,330,204.59/75,007.72
6. Step 6: Final answer
   x = 70,450.48