Finding the Fourth Proportional to 16,828.80, 23,196.42 and 13,460.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,828.80 : 23,196.42 = 13,460.82 : x
2. Step 2: Convert to fraction form
   16,828.80/23,196.42 = 13,460.82/x
3. Step 3: Cross multiply
   16,828.80x = 23,196.42 × 13,460.82
4. Step 4: Simplify right side
   16,828.80x = 312,242,834.26
5. Step 5: Solve for x
   x = 312,242,834.26/16,828.80
6. Step 6: Final answer
   x = 18,554.08