Finding the Fourth Proportional to 10,419.09, 14,378.70 and 5,703.40

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.09 : 14,378.70 = 5,703.40 : x
2. Step 2: Convert to fraction form
   10,419.09/14,378.70 = 5,703.40/x
3. Step 3: Cross multiply
   10,419.09x = 14,378.70 × 5,703.40
4. Step 4: Simplify right side
   10,419.09x = 82,007,477.58
5. Step 5: Solve for x
   x = 82,007,477.58/10,419.09
6. Step 6: Final answer
   x = 7,870.89