Finding the Fourth Proportional to 12,498.04, 18,785.94 and 12,459.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,498.04 : 18,785.94 = 12,459.16 : x
2. Step 2: Convert to fraction form
   12,498.04/18,785.94 = 12,459.16/x
3. Step 3: Cross multiply
   12,498.04x = 18,785.94 × 12,459.16
4. Step 4: Simplify right side
   12,498.04x = 234,057,032.21
5. Step 5: Solve for x
   x = 234,057,032.21/12,498.04
6. Step 6: Final answer
   x = 18,727.50