Finding the Fourth Proportional to 11,445, 15,783.30 and 7,469.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,445 : 15,783.30 = 7,469.16 : x
2. Step 2: Convert to fraction form
   11,445/15,783.30 = 7,469.16/x
3. Step 3: Cross multiply
   11,445x = 15,783.30 × 7,469.16
4. Step 4: Simplify right side
   11,445x = 117,887,993.03
5. Step 5: Solve for x
   x = 117,887,993.03/11,445
6. Step 6: Final answer
   x = 10,300.39