Finding the Fourth Proportional to 14,521.84, 21,780.42 and 4,131.16

Step by Step Solution

1. Step 1: Write the proportion equation
   14,521.84 : 21,780.42 = 4,131.16 : x
2. Step 2: Convert to fraction form
   14,521.84/21,780.42 = 4,131.16/x
3. Step 3: Cross multiply
   14,521.84x = 21,780.42 × 4,131.16
4. Step 4: Simplify right side
   14,521.84x = 89,978,399.89
5. Step 5: Solve for x
   x = 89,978,399.89/14,521.84
6. Step 6: Final answer
   x = 6,196.07