Finding the Fourth Proportional to 11,895.25, 17,853.69 and 5,320.21

Step by Step Solution

1. Step 1: Write the proportion equation
   11,895.25 : 17,853.69 = 5,320.21 : x
2. Step 2: Convert to fraction form
   11,895.25/17,853.69 = 5,320.21/x
3. Step 3: Cross multiply
   11,895.25x = 17,853.69 × 5,320.21
4. Step 4: Simplify right side
   11,895.25x = 94,985,290.81
5. Step 5: Solve for x
   x = 94,985,290.81/11,895.25
6. Step 6: Final answer
   x = 7,985.15