Finding the Fourth Proportional to 9,426.69, 12,975.52 and 8,310.51

Step by Step Solution

1. Step 1: Write the proportion equation
   9,426.69 : 12,975.52 = 8,310.51 : x
2. Step 2: Convert to fraction form
   9,426.69/12,975.52 = 8,310.51/x
3. Step 3: Cross multiply
   9,426.69x = 12,975.52 × 8,310.51
4. Step 4: Simplify right side
   9,426.69x = 107,833,188.72
5. Step 5: Solve for x
   x = 107,833,188.72/9,426.69
6. Step 6: Final answer
   x = 11,439.14