Finding the Fourth Proportional to 12,603.80, 17,417.22 and 9,454.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,603.80 : 17,417.22 = 9,454.52 : x
2. Step 2: Convert to fraction form
   12,603.80/17,417.22 = 9,454.52/x
3. Step 3: Cross multiply
   12,603.80x = 17,417.22 × 9,454.52
4. Step 4: Simplify right side
   12,603.80x = 164,671,454.83
5. Step 5: Solve for x
   x = 164,671,454.83/12,603.80
6. Step 6: Final answer
   x = 13,065.22