Finding the Fourth Proportional to 13,046.01, 18,128.39 and 12,910.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,046.01 : 18,128.39 = 12,910.54 : x
2. Step 2: Convert to fraction form
   13,046.01/18,128.39 = 12,910.54/x
3. Step 3: Cross multiply
   13,046.01x = 18,128.39 × 12,910.54
4. Step 4: Simplify right side
   13,046.01x = 234,047,194.36
5. Step 5: Solve for x
   x = 234,047,194.36/13,046.01
6. Step 6: Final answer
   x = 17,940.14