Finding the Fourth Proportional to 13,116.92, 18,100.83 and 7,148.46

Step by Step Solution

1. Step 1: Write the proportion equation
   13,116.92 : 18,100.83 = 7,148.46 : x
2. Step 2: Convert to fraction form
   13,116.92/18,100.83 = 7,148.46/x
3. Step 3: Cross multiply
   13,116.92x = 18,100.83 × 7,148.46
4. Step 4: Simplify right side
   13,116.92x = 129,393,023.48
5. Step 5: Solve for x
   x = 129,393,023.48/13,116.92
6. Step 6: Final answer
   x = 9,864.59