Finding the Fourth Proportional to 9,263.62, 12,786.69 and 5,486.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,263.62 : 12,786.69 = 5,486.59 : x
2. Step 2: Convert to fraction form
   9,263.62/12,786.69 = 5,486.59/x
3. Step 3: Cross multiply
   9,263.62x = 12,786.69 × 5,486.59
4. Step 4: Simplify right side
   9,263.62x = 70,155,325.49
5. Step 5: Solve for x
   x = 70,155,325.49/9,263.62
6. Step 6: Final answer
   x = 7,573.21