Finding the Fourth Proportional to 14,298.06, 21,446.31 and 3,909.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,298.06 : 21,446.31 = 3,909.06 : x
2. Step 2: Convert to fraction form
   14,298.06/21,446.31 = 3,909.06/x
3. Step 3: Cross multiply
   14,298.06x = 21,446.31 × 3,909.06
4. Step 4: Simplify right side
   14,298.06x = 83,834,912.57
5. Step 5: Solve for x
   x = 83,834,912.57/14,298.06
6. Step 6: Final answer
   x = 5,863.38