Finding the Fourth Proportional to 31,019.48, 46,528.59 and 7,646.12

Step by Step Solution

1. Step 1: Write the proportion equation
   31,019.48 : 46,528.59 = 7,646.12 : x
2. Step 2: Convert to fraction form
   31,019.48/46,528.59 = 7,646.12/x
3. Step 3: Cross multiply
   31,019.48x = 46,528.59 × 7,646.12
4. Step 4: Simplify right side
   31,019.48x = 355,763,182.57
5. Step 5: Solve for x
   x = 355,763,182.57/31,019.48
6. Step 6: Final answer
   x = 11,469.02