Finding the Fourth Proportional to 23,216.55, 34,838.67 and 8,426.63

Step by Step Solution

1. Step 1: Write the proportion equation
   23,216.55 : 34,838.67 = 8,426.63 : x
2. Step 2: Convert to fraction form
   23,216.55/34,838.67 = 8,426.63/x
3. Step 3: Cross multiply
   23,216.55x = 34,838.67 × 8,426.63
4. Step 4: Simplify right side
   23,216.55x = 293,572,407.59
5. Step 5: Solve for x
   x = 293,572,407.59/23,216.55
6. Step 6: Final answer
   x = 12,644.96