Finding the Fourth Proportional to 9,863.30, 13,611.61 and 5,387.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,863.30 : 13,611.61 = 5,387.01 : x
2. Step 2: Convert to fraction form
   9,863.30/13,611.61 = 5,387.01/x
3. Step 3: Cross multiply
   9,863.30x = 13,611.61 × 5,387.01
4. Step 4: Simplify right side
   9,863.30x = 73,325,834.88
5. Step 5: Solve for x
   x = 73,325,834.88/9,863.30
6. Step 6: Final answer
   x = 7,434.21