Finding the Fourth Proportional to 20,826.14, 28,719.59 and 19,097.34

Step by Step Solution

1. Step 1: Write the proportion equation
   20,826.14 : 28,719.59 = 19,097.34 : x
2. Step 2: Convert to fraction form
   20,826.14/28,719.59 = 19,097.34/x
3. Step 3: Cross multiply
   20,826.14x = 28,719.59 × 19,097.34
4. Step 4: Simplify right side
   20,826.14x = 548,467,948.31
5. Step 5: Solve for x
   x = 548,467,948.31/20,826.14
6. Step 6: Final answer
   x = 26,335.56