Finding the Fourth Proportional to 12,603.63, 18,908.18 and 3,838.32

Step by Step Solution

1. Step 1: Write the proportion equation
   12,603.63 : 18,908.18 = 3,838.32 : x
2. Step 2: Convert to fraction form
   12,603.63/18,908.18 = 3,838.32/x
3. Step 3: Cross multiply
   12,603.63x = 18,908.18 × 3,838.32
4. Step 4: Simplify right side
   12,603.63x = 72,575,626.27
5. Step 5: Solve for x
   x = 72,575,626.27/12,603.63
6. Step 6: Final answer
   x = 5,758.31