Finding the Fourth Proportional to 12,397.88, 17,109.98 and 7,683.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,397.88 : 17,109.98 = 7,683.08 : x
2. Step 2: Convert to fraction form
   12,397.88/17,109.98 = 7,683.08/x
3. Step 3: Cross multiply
   12,397.88x = 17,109.98 × 7,683.08
4. Step 4: Simplify right side
   12,397.88x = 131,457,221.17
5. Step 5: Solve for x
   x = 131,457,221.17/12,397.88
6. Step 6: Final answer
   x = 10,603.21