Finding the Fourth Proportional to 19,185.10, 26,479.52 and 12,893.83

Step by Step Solution

1. Step 1: Write the proportion equation
   19,185.10 : 26,479.52 = 12,893.83 : x
2. Step 2: Convert to fraction form
   19,185.10/26,479.52 = 12,893.83/x
3. Step 3: Cross multiply
   19,185.10x = 26,479.52 × 12,893.83
4. Step 4: Simplify right side
   19,185.10x = 341,422,429.36
5. Step 5: Solve for x
   x = 341,422,429.36/19,185.10
6. Step 6: Final answer
   x = 17,796.23