Finding the Fourth Proportional to 12,974.56, 17,903.88 and 7,309

Step by Step Solution

1. Step 1: Write the proportion equation
   12,974.56 : 17,903.88 = 7,309 : x
2. Step 2: Convert to fraction form
   12,974.56/17,903.88 = 7,309/x
3. Step 3: Cross multiply
   12,974.56x = 17,903.88 × 7,309
4. Step 4: Simplify right side
   12,974.56x = 130,859,458.92
5. Step 5: Solve for x
   x = 130,859,458.92/12,974.56
6. Step 6: Final answer
   x = 10,085.85