Finding the Fourth Proportional to 8,345.97, 12,523.56 and 3,419.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,345.97 : 12,523.56 = 3,419.06 : x
2. Step 2: Convert to fraction form
   8,345.97/12,523.56 = 3,419.06/x
3. Step 3: Cross multiply
   8,345.97x = 12,523.56 × 3,419.06
4. Step 4: Simplify right side
   8,345.97x = 42,818,740.44
5. Step 5: Solve for x
   x = 42,818,740.44/8,345.97
6. Step 6: Final answer
   x = 5,130.47