Finding the Fourth Proportional to 9,013.30, 12,435.63 and 5,235.73

Step by Step Solution

1. Step 1: Write the proportion equation
   9,013.30 : 12,435.63 = 5,235.73 : x
2. Step 2: Convert to fraction form
   9,013.30/12,435.63 = 5,235.73/x
3. Step 3: Cross multiply
   9,013.30x = 12,435.63 × 5,235.73
4. Step 4: Simplify right side
   9,013.30x = 65,109,603.10
5. Step 5: Solve for x
   x = 65,109,603.10/9,013.30
6. Step 6: Final answer
   x = 7,223.73