Finding the Fourth Proportional to 10,419.53, 14,379.31 and 5,703.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.53 : 14,379.31 = 5,703.81 : x
2. Step 2: Convert to fraction form
   10,419.53/14,379.31 = 5,703.81/x
3. Step 3: Cross multiply
   10,419.53x = 14,379.31 × 5,703.81
4. Step 4: Simplify right side
   10,419.53x = 82,016,852.17
5. Step 5: Solve for x
   x = 82,016,852.17/10,419.53
6. Step 6: Final answer
   x = 7,871.45