Finding the Fourth Proportional to 9,265.54, 12,786.76 and 5,073.78

Step by Step Solution

1. Step 1: Write the proportion equation
   9,265.54 : 12,786.76 = 5,073.78 : x
2. Step 2: Convert to fraction form
   9,265.54/12,786.76 = 5,073.78/x
3. Step 3: Cross multiply
   9,265.54x = 12,786.76 × 5,073.78
4. Step 4: Simplify right side
   9,265.54x = 64,877,207.15
5. Step 5: Solve for x
   x = 64,877,207.15/9,265.54
6. Step 6: Final answer
   x = 7,001.99