Finding the Fourth Proportional to 12,303.13, 18,456.72 and 3,985.24

Step by Step Solution

1. Step 1: Write the proportion equation
   12,303.13 : 18,456.72 = 3,985.24 : x
2. Step 2: Convert to fraction form
   12,303.13/18,456.72 = 3,985.24/x
3. Step 3: Cross multiply
   12,303.13x = 18,456.72 × 3,985.24
4. Step 4: Simplify right side
   12,303.13x = 73,554,458.81
5. Step 5: Solve for x
   x = 73,554,458.81/12,303.13
6. Step 6: Final answer
   x = 5,978.52