Finding the Fourth Proportional to 12,407.85, 17,116.42 and 7,683.93

Step by Step Solution

1. Step 1: Write the proportion equation
   12,407.85 : 17,116.42 = 7,683.93 : x
2. Step 2: Convert to fraction form
   12,407.85/17,116.42 = 7,683.93/x
3. Step 3: Cross multiply
   12,407.85x = 17,116.42 × 7,683.93
4. Step 4: Simplify right side
   12,407.85x = 131,521,373.13
5. Step 5: Solve for x
   x = 131,521,373.13/12,407.85
6. Step 6: Final answer
   x = 10,599.85