Finding the Fourth Proportional to 13,853.78, 19,118.07 and 7,566.15

Step by Step Solution

1. Step 1: Write the proportion equation
   13,853.78 : 19,118.07 = 7,566.15 : x
2. Step 2: Convert to fraction form
   13,853.78/19,118.07 = 7,566.15/x
3. Step 3: Cross multiply
   13,853.78x = 19,118.07 × 7,566.15
4. Step 4: Simplify right side
   13,853.78x = 144,650,185.33
5. Step 5: Solve for x
   x = 144,650,185.33/13,853.78
6. Step 6: Final answer
   x = 10,441.21