Finding the Fourth Proportional to 12,682.31, 17,501.18 and 7,016.99

Step by Step Solution

1. Step 1: Write the proportion equation
   12,682.31 : 17,501.18 = 7,016.99 : x
2. Step 2: Convert to fraction form
   12,682.31/17,501.18 = 7,016.99/x
3. Step 3: Cross multiply
   12,682.31x = 17,501.18 × 7,016.99
4. Step 4: Simplify right side
   12,682.31x = 122,805,482.46
5. Step 5: Solve for x
   x = 122,805,482.46/12,682.31
6. Step 6: Final answer
   x = 9,683.21