Finding the Fourth Proportional to 9,288.30, 12,803.28 and 7,041.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.30 : 12,803.28 = 7,041.18 : x
2. Step 2: Convert to fraction form
   9,288.30/12,803.28 = 7,041.18/x
3. Step 3: Cross multiply
   9,288.30x = 12,803.28 × 7,041.18
4. Step 4: Simplify right side
   9,288.30x = 90,150,199.07
5. Step 5: Solve for x
   x = 90,150,199.07/9,288.30
6. Step 6: Final answer
   x = 9,705.78