Finding the Fourth Proportional to 19,462.15, 26,866.71 and 12,748.06

Step by Step Solution

1. Step 1: Write the proportion equation
   19,462.15 : 26,866.71 = 12,748.06 : x
2. Step 2: Convert to fraction form
   19,462.15/26,866.71 = 12,748.06/x
3. Step 3: Cross multiply
   19,462.15x = 26,866.71 × 12,748.06
4. Step 4: Simplify right side
   19,462.15x = 342,498,233.01
5. Step 5: Solve for x
   x = 342,498,233.01/19,462.15
6. Step 6: Final answer
   x = 17,598.17