Finding the Fourth Proportional to 8,963.07, 12,369.56 and 5,426.61

Step by Step Solution

1. Step 1: Write the proportion equation
   8,963.07 : 12,369.56 = 5,426.61 : x
2. Step 2: Convert to fraction form
   8,963.07/12,369.56 = 5,426.61/x
3. Step 3: Cross multiply
   8,963.07x = 12,369.56 × 5,426.61
4. Step 4: Simplify right side
   8,963.07x = 67,124,750.86
5. Step 5: Solve for x
   x = 67,124,750.86/8,963.07
6. Step 6: Final answer
   x = 7,489.04