Finding the Fourth Proportional to 13,100.40, 18,083.79 and 7,794.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,100.40 : 18,083.79 = 7,794.18 : x
2. Step 2: Convert to fraction form
   13,100.40/18,083.79 = 7,794.18/x
3. Step 3: Cross multiply
   13,100.40x = 18,083.79 × 7,794.18
4. Step 4: Simplify right side
   13,100.40x = 140,948,314.34
5. Step 5: Solve for x
   x = 140,948,314.34/13,100.40
6. Step 6: Final answer
   x = 10,759.08