Finding the Fourth Proportional to 14,300.25, 21,450.42 and 3,912

Step by Step Solution

1. Step 1: Write the proportion equation
   14,300.25 : 21,450.42 = 3,912 : x
2. Step 2: Convert to fraction form
   14,300.25/21,450.42 = 3,912/x
3. Step 3: Cross multiply
   14,300.25x = 21,450.42 × 3,912
4. Step 4: Simplify right side
   14,300.25x = 83,914,043.04
5. Step 5: Solve for x
   x = 83,914,043.04/14,300.25
6. Step 6: Final answer
   x = 5,868.01