Finding the Fourth Proportional to 9,327.42, 13,991.91 and 3,087.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,327.42 : 13,991.91 = 3,087.25 : x
2. Step 2: Convert to fraction form
   9,327.42/13,991.91 = 3,087.25/x
3. Step 3: Cross multiply
   9,327.42x = 13,991.91 × 3,087.25
4. Step 4: Simplify right side
   9,327.42x = 43,196,477.59
5. Step 5: Solve for x
   x = 43,196,477.59/9,327.42
6. Step 6: Final answer
   x = 4,631.13