Finding the Fourth Proportional to 10,418.82, 14,378.07 and 5,703.21

Step by Step Solution

1. Step 1: Write the proportion equation
   10,418.82 : 14,378.07 = 5,703.21 : x
2. Step 2: Convert to fraction form
   10,418.82/14,378.07 = 5,703.21/x
3. Step 3: Cross multiply
   10,418.82x = 14,378.07 × 5,703.21
4. Step 4: Simplify right side
   10,418.82x = 82,001,152.60
5. Step 5: Solve for x
   x = 82,001,152.60/10,418.82
6. Step 6: Final answer
   x = 7,870.48