Finding the Fourth Proportional to 12,298.96, 16,929.88 and 9,309.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,298.96 : 16,929.88 = 9,309.52 : x
2. Step 2: Convert to fraction form
   12,298.96/16,929.88 = 9,309.52/x
3. Step 3: Cross multiply
   12,298.96x = 16,929.88 × 9,309.52
4. Step 4: Simplify right side
   12,298.96x = 157,609,056.46
5. Step 5: Solve for x
   x = 157,609,056.46/12,298.96
6. Step 6: Final answer
   x = 12,814.83