Finding the Fourth Proportional to 10,419.03, 14,378.28 and 5,703.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,419.03 : 14,378.28 = 5,703.60 : x
2. Step 2: Convert to fraction form
   10,419.03/14,378.28 = 5,703.60/x
3. Step 3: Cross multiply
   10,419.03x = 14,378.28 × 5,703.60
4. Step 4: Simplify right side
   10,419.03x = 82,007,957.81
5. Step 5: Solve for x
   x = 82,007,957.81/10,419.03
6. Step 6: Final answer
   x = 7,870.98