Finding the Fourth Proportional to 12,826.34, 19,188.92 and 9,715.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,826.34 : 19,188.92 = 9,715.34 : x
2. Step 2: Convert to fraction form
   12,826.34/19,188.92 = 9,715.34/x
3. Step 3: Cross multiply
   12,826.34x = 19,188.92 × 9,715.34
4. Step 4: Simplify right side
   12,826.34x = 186,426,882.03
5. Step 5: Solve for x
   x = 186,426,882.03/12,826.34
6. Step 6: Final answer
   x = 14,534.69