Finding the Fourth Proportional to 9,215.05, 13,822.59 and 2,803.69

Step by Step Solution

1. Step 1: Write the proportion equation
   9,215.05 : 13,822.59 = 2,803.69 : x
2. Step 2: Convert to fraction form
   9,215.05/13,822.59 = 2,803.69/x
3. Step 3: Cross multiply
   9,215.05x = 13,822.59 × 2,803.69
4. Step 4: Simplify right side
   9,215.05x = 38,754,228.78
5. Step 5: Solve for x
   x = 38,754,228.78/9,215.05
6. Step 6: Final answer
   x = 4,205.54