Finding the Fourth Proportional to 9,683.04, 13,370.42 and 7,890.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,683.04 : 13,370.42 = 7,890.76 : x
2. Step 2: Convert to fraction form
   9,683.04/13,370.42 = 7,890.76/x
3. Step 3: Cross multiply
   9,683.04x = 13,370.42 × 7,890.76
4. Step 4: Simplify right side
   9,683.04x = 105,502,775.32
5. Step 5: Solve for x
   x = 105,502,775.32/9,683.04
6. Step 6: Final answer
   x = 10,895.63