Finding the Fourth Proportional to 10,574.94, 15,858.57 and 4,419.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,574.94 : 15,858.57 = 4,419.42 : x
2. Step 2: Convert to fraction form
   10,574.94/15,858.57 = 4,419.42/x
3. Step 3: Cross multiply
   10,574.94x = 15,858.57 × 4,419.42
4. Step 4: Simplify right side
   10,574.94x = 70,085,681.43
5. Step 5: Solve for x
   x = 70,085,681.43/10,574.94
6. Step 6: Final answer
   x = 6,627.53