Finding the Fourth Proportional to 12,795.36, 17,670.24 and 8,826.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,795.36 : 17,670.24 = 8,826.72 : x
2. Step 2: Convert to fraction form
   12,795.36/17,670.24 = 8,826.72/x
3. Step 3: Cross multiply
   12,795.36x = 17,670.24 × 8,826.72
4. Step 4: Simplify right side
   12,795.36x = 155,970,260.81
5. Step 5: Solve for x
   x = 155,970,260.81/12,795.36
6. Step 6: Final answer
   x = 12,189.60