Finding the Fourth Proportional to 10,272.12, 15,404.88 and 3,345

Step by Step Solution

1. Step 1: Write the proportion equation
   10,272.12 : 15,404.88 = 3,345 : x
2. Step 2: Convert to fraction form
   10,272.12/15,404.88 = 3,345/x
3. Step 3: Cross multiply
   10,272.12x = 15,404.88 × 3,345
4. Step 4: Simplify right side
   10,272.12x = 51,529,323.60
5. Step 5: Solve for x
   x = 51,529,323.60/10,272.12
6. Step 6: Final answer
   x = 5,016.43