Finding the Fourth Proportional to 9,075.84, 13,610.52 and 3,151.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,075.84 : 13,610.52 = 3,151.20 : x
2. Step 2: Convert to fraction form
   9,075.84/13,610.52 = 3,151.20/x
3. Step 3: Cross multiply
   9,075.84x = 13,610.52 × 3,151.20
4. Step 4: Simplify right side
   9,075.84x = 42,889,470.62
5. Step 5: Solve for x
   x = 42,889,470.62/9,075.84
6. Step 6: Final answer
   x = 4,725.68