Finding the Fourth Proportional to 14,282.63, 21,419.37 and 4,920.40

Step by Step Solution

1. Step 1: Write the proportion equation
   14,282.63 : 21,419.37 = 4,920.40 : x
2. Step 2: Convert to fraction form
   14,282.63/21,419.37 = 4,920.40/x
3. Step 3: Cross multiply
   14,282.63x = 21,419.37 × 4,920.40
4. Step 4: Simplify right side
   14,282.63x = 105,391,868.15
5. Step 5: Solve for x
   x = 105,391,868.15/14,282.63
6. Step 6: Final answer
   x = 7,379.02