Finding the Fourth Proportional to 14,300.65, 21,453.03 and 5,419.34

Step by Step Solution

1. Step 1: Write the proportion equation
   14,300.65 : 21,453.03 = 5,419.34 : x
2. Step 2: Convert to fraction form
   14,300.65/21,453.03 = 5,419.34/x
3. Step 3: Cross multiply
   14,300.65x = 21,453.03 × 5,419.34
4. Step 4: Simplify right side
   14,300.65x = 116,261,156.34
5. Step 5: Solve for x
   x = 116,261,156.34/14,300.65
6. Step 6: Final answer
   x = 8,129.78