Finding the Fourth Proportional to 13,417.80, 18,517.56 and 7,754.52

Step by Step Solution

1. Step 1: Write the proportion equation
   13,417.80 : 18,517.56 = 7,754.52 : x
2. Step 2: Convert to fraction form
   13,417.80/18,517.56 = 7,754.52/x
3. Step 3: Cross multiply
   13,417.80x = 18,517.56 × 7,754.52
4. Step 4: Simplify right side
   13,417.80x = 143,594,789.37
5. Step 5: Solve for x
   x = 143,594,789.37/13,417.80
6. Step 6: Final answer
   x = 10,701.81