Finding the Fourth Proportional to 9,039.84, 13,556.37 and 3,115.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,039.84 : 13,556.37 = 3,115.05 : x
2. Step 2: Convert to fraction form
   9,039.84/13,556.37 = 3,115.05/x
3. Step 3: Cross multiply
   9,039.84x = 13,556.37 × 3,115.05
4. Step 4: Simplify right side
   9,039.84x = 42,228,770.37
5. Step 5: Solve for x
   x = 42,228,770.37/9,039.84
6. Step 6: Final answer
   x = 4,671.41