Finding the Fourth Proportional to 9,641.72, 13,311.45 and 9,046.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,641.72 : 13,311.45 = 9,046.10 : x
2. Step 2: Convert to fraction form
   9,641.72/13,311.45 = 9,046.10/x
3. Step 3: Cross multiply
   9,641.72x = 13,311.45 × 9,046.10
4. Step 4: Simplify right side
   9,641.72x = 120,416,641.29
5. Step 5: Solve for x
   x = 120,416,641.29/9,641.72
6. Step 6: Final answer
   x = 12,489.13