Finding the Fourth Proportional to 10,419.48, 14,379.12 and 5,703.84

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.48 : 14,379.12 = 5,703.84 : x
2. Step 2: Convert to fraction form
   10,419.48/14,379.12 = 5,703.84/x
3. Step 3: Cross multiply
   10,419.48x = 14,379.12 × 5,703.84
4. Step 4: Simplify right side
   10,419.48x = 82,016,199.82
5. Step 5: Solve for x
   x = 82,016,199.82/10,419.48
6. Step 6: Final answer
   x = 7,871.43