Finding the Fourth Proportional to 22,539.16, 31,103.94 and 12,603.16

Step by Step Solution

1. Step 1: Write the proportion equation
   22,539.16 : 31,103.94 = 12,603.16 : x
2. Step 2: Convert to fraction form
   22,539.16/31,103.94 = 12,603.16/x
3. Step 3: Cross multiply
   22,539.16x = 31,103.94 × 12,603.16
4. Step 4: Simplify right side
   22,539.16x = 392,007,932.45
5. Step 5: Solve for x
   x = 392,007,932.45/22,539.16
6. Step 6: Final answer
   x = 17,392.30