Finding the Fourth Proportional to 9,863, 13,611.06 and 5,447

Step by Step Solution

1. Step 1: Write the proportion equation
   9,863 : 13,611.06 = 5,447 : x
2. Step 2: Convert to fraction form
   9,863/13,611.06 = 5,447/x
3. Step 3: Cross multiply
   9,863x = 13,611.06 × 5,447
4. Step 4: Simplify right side
   9,863x = 74,139,443.82
5. Step 5: Solve for x
   x = 74,139,443.82/9,863
6. Step 6: Final answer
   x = 7,516.93