Finding the Fourth Proportional to 13,116.27, 18,100.83 and 7,451.20

Step by Step Solution

1. Step 1: Write the proportion equation
   13,116.27 : 18,100.83 = 7,451.20 : x
2. Step 2: Convert to fraction form
   13,116.27/18,100.83 = 7,451.20/x
3. Step 3: Cross multiply
   13,116.27x = 18,100.83 × 7,451.20
4. Step 4: Simplify right side
   13,116.27x = 134,872,904.50
5. Step 5: Solve for x
   x = 134,872,904.50/13,116.27
6. Step 6: Final answer
   x = 10,282.87