Finding the Fourth Proportional to 9,456.51, 13,050.30 and 5,207.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,456.51 : 13,050.30 = 5,207.78 : x
2. Step 2: Convert to fraction form
   9,456.51/13,050.30 = 5,207.78/x
3. Step 3: Cross multiply
   9,456.51x = 13,050.30 × 5,207.78
4. Step 4: Simplify right side
   9,456.51x = 67,963,091.33
5. Step 5: Solve for x
   x = 67,963,091.33/9,456.51
6. Step 6: Final answer
   x = 7,186.91