Finding the Fourth Proportional to 9,315.67, 13,970.55 and 3,074.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,315.67 : 13,970.55 = 3,074.52 : x
2. Step 2: Convert to fraction form
   9,315.67/13,970.55 = 3,074.52/x
3. Step 3: Cross multiply
   9,315.67x = 13,970.55 × 3,074.52
4. Step 4: Simplify right side
   9,315.67x = 42,952,754.94
5. Step 5: Solve for x
   x = 42,952,754.94/9,315.67
6. Step 6: Final answer
   x = 4,610.81