Finding the Fourth Proportional to 12,522.29, 17,280.77 and 7,806.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,522.29 : 17,280.77 = 7,806.56 : x
2. Step 2: Convert to fraction form
   12,522.29/17,280.77 = 7,806.56/x
3. Step 3: Cross multiply
   12,522.29x = 17,280.77 × 7,806.56
4. Step 4: Simplify right side
   12,522.29x = 134,903,372.02
5. Step 5: Solve for x
   x = 134,903,372.02/12,522.29
6. Step 6: Final answer
   x = 10,773.06