Finding the Fourth Proportional to 12,903.39, 17,808.48 and 9,329.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,903.39 : 17,808.48 = 9,329.94 : x
2. Step 2: Convert to fraction form
   12,903.39/17,808.48 = 9,329.94/x
3. Step 3: Cross multiply
   12,903.39x = 17,808.48 × 9,329.94
4. Step 4: Simplify right side
   12,903.39x = 166,152,049.89
5. Step 5: Solve for x
   x = 166,152,049.89/12,903.39
6. Step 6: Final answer
   x = 12,876.62