Finding the Fourth Proportional to 12,806.30, 17,672.78 and 7,501.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,806.30 : 17,672.78 = 7,501.16 : x
2. Step 2: Convert to fraction form
   12,806.30/17,672.78 = 7,501.16/x
3. Step 3: Cross multiply
   12,806.30x = 17,672.78 × 7,501.16
4. Step 4: Simplify right side
   12,806.30x = 132,566,313.95
5. Step 5: Solve for x
   x = 132,566,313.95/12,806.30
6. Step 6: Final answer
   x = 10,351.65