Finding the Fourth Proportional to 12,298.64, 16,970.61 and 7,759.61

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298.64 : 16,970.61 = 7,759.61 : x
2. Step 2: Convert to fraction form
   12,298.64/16,970.61 = 7,759.61/x
3. Step 3: Cross multiply
   12,298.64x = 16,970.61 × 7,759.61
4. Step 4: Simplify right side
   12,298.64x = 131,685,230.21
5. Step 5: Solve for x
   x = 131,685,230.21/12,298.64
6. Step 6: Final answer
   x = 10,707.30