Finding the Fourth Proportional to 12,641.54, 17,426.14 and 9,103.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,641.54 : 17,426.14 = 9,103.46 : x
2. Step 2: Convert to fraction form
   12,641.54/17,426.14 = 9,103.46/x
3. Step 3: Cross multiply
   12,641.54x = 17,426.14 × 9,103.46
4. Step 4: Simplify right side
   12,641.54x = 158,638,058.56
5. Step 5: Solve for x
   x = 158,638,058.56/12,641.54
6. Step 6: Final answer
   x = 12,548.96