Finding the Fourth Proportional to 12,634.42, 17,422.58 and 8,383.98

Step by Step Solution

1. Step 1: Write the proportion equation
   12,634.42 : 17,422.58 = 8,383.98 : x
2. Step 2: Convert to fraction form
   12,634.42/17,422.58 = 8,383.98/x
3. Step 3: Cross multiply
   12,634.42x = 17,422.58 × 8,383.98
4. Step 4: Simplify right side
   12,634.42x = 146,070,562.27
5. Step 5: Solve for x
   x = 146,070,562.27/12,634.42
6. Step 6: Final answer
   x = 11,561.32