Finding the Fourth Proportional to 10,434.12, 15,647.94 and 3,507

Step by Step Solution

1. Step 1: Write the proportion equation
   10,434.12 : 15,647.94 = 3,507 : x
2. Step 2: Convert to fraction form
   10,434.12/15,647.94 = 3,507/x
3. Step 3: Cross multiply
   10,434.12x = 15,647.94 × 3,507
4. Step 4: Simplify right side
   10,434.12x = 54,877,325.58
5. Step 5: Solve for x
   x = 54,877,325.58/10,434.12
6. Step 6: Final answer
   x = 5,259.41