Finding the Fourth Proportional to 8,963.52, 12,370.71 and 5,426.70

Step by Step Solution

1. Step 1: Write the proportion equation
   8,963.52 : 12,370.71 = 5,426.70 : x
2. Step 2: Convert to fraction form
   8,963.52/12,370.71 = 5,426.70/x
3. Step 3: Cross multiply
   8,963.52x = 12,370.71 × 5,426.70
4. Step 4: Simplify right side
   8,963.52x = 67,132,131.96
5. Step 5: Solve for x
   x = 67,132,131.96/8,963.52
6. Step 6: Final answer
   x = 7,489.48