Finding the Fourth Proportional to 12,906.56, 19,366.86 and 8,526.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,906.56 : 19,366.86 = 8,526.08 : x
2. Step 2: Convert to fraction form
   12,906.56/19,366.86 = 8,526.08/x
3. Step 3: Cross multiply
   12,906.56x = 19,366.86 × 8,526.08
4. Step 4: Simplify right side
   12,906.56x = 165,123,397.71
5. Step 5: Solve for x
   x = 165,123,397.71/12,906.56
6. Step 6: Final answer
   x = 12,793.76