Finding the Fourth Proportional to 8,835.30, 12,171.87 and 7,572.24

Step by Step Solution

1. Step 1: Write the proportion equation
   8,835.30 : 12,171.87 = 7,572.24 : x
2. Step 2: Convert to fraction form
   8,835.30/12,171.87 = 7,572.24/x
3. Step 3: Cross multiply
   8,835.30x = 12,171.87 × 7,572.24
4. Step 4: Simplify right side
   8,835.30x = 92,168,320.89
5. Step 5: Solve for x
   x = 92,168,320.89/8,835.30
6. Step 6: Final answer
   x = 10,431.83