Finding the Fourth Proportional to 22,034.72, 30,408 and 12,603.36

Step by Step Solution

1. Step 1: Write the proportion equation
   22,034.72 : 30,408 = 12,603.36 : x
2. Step 2: Convert to fraction form
   22,034.72/30,408 = 12,603.36/x
3. Step 3: Cross multiply
   22,034.72x = 30,408 × 12,603.36
4. Step 4: Simplify right side
   22,034.72x = 383,242,970.88
5. Step 5: Solve for x
   x = 383,242,970.88/22,034.72
6. Step 6: Final answer
   x = 17,392.69