Finding the Fourth Proportional to 13,560.78, 18,713.27 and 7,895.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,560.78 : 18,713.27 = 7,895.69 : x
2. Step 2: Convert to fraction form
   13,560.78/18,713.27 = 7,895.69/x
3. Step 3: Cross multiply
   13,560.78x = 18,713.27 × 7,895.69
4. Step 4: Simplify right side
   13,560.78x = 147,754,104.98
5. Step 5: Solve for x
   x = 147,754,104.98/13,560.78
6. Step 6: Final answer
   x = 10,895.69