Finding the Fourth Proportional to 12,683.59, 17,507.67 and 7,382.85

Step by Step Solution

1. Step 1: Write the proportion equation
   12,683.59 : 17,507.67 = 7,382.85 : x
2. Step 2: Convert to fraction form
   12,683.59/17,507.67 = 7,382.85/x
3. Step 3: Cross multiply
   12,683.59x = 17,507.67 × 7,382.85
4. Step 4: Simplify right side
   12,683.59x = 129,256,501.46
5. Step 5: Solve for x
   x = 129,256,501.46/12,683.59
6. Step 6: Final answer
   x = 10,190.85