Finding the Fourth Proportional to 9,646.20, 13,312.27 and 5,397.00

Step by Step Solution

1. Step 1: Write the proportion equation
   9,646.20 : 13,312.27 = 5,397.00 : x
2. Step 2: Convert to fraction form
   9,646.20/13,312.27 = 5,397.00/x
3. Step 3: Cross multiply
   9,646.20x = 13,312.27 × 5,397.00
4. Step 4: Simplify right side
   9,646.20x = 71,846,357.62
5. Step 5: Solve for x
   x = 71,846,357.62/9,646.20
6. Step 6: Final answer
   x = 7,448.15