Finding the Fourth Proportional to 12,303.18, 18,454.88 and 3,538.10

Step by Step Solution

1. Step 1: Write the proportion equation
   12,303.18 : 18,454.88 = 3,538.10 : x
2. Step 2: Convert to fraction form
   12,303.18/18,454.88 = 3,538.10/x
3. Step 3: Cross multiply
   12,303.18x = 18,454.88 × 3,538.10
4. Step 4: Simplify right side
   12,303.18x = 65,295,210.93
5. Step 5: Solve for x
   x = 65,295,210.93/12,303.18
6. Step 6: Final answer
   x = 5,307.18