Finding the Fourth Proportional to 14,009.89, 21,017.91 and 4,149.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,009.89 : 21,017.91 = 4,149.94 : x
2. Step 2: Convert to fraction form
   14,009.89/21,017.91 = 4,149.94/x
3. Step 3: Cross multiply
   14,009.89x = 21,017.91 × 4,149.94
4. Step 4: Simplify right side
   14,009.89x = 87,223,065.43
5. Step 5: Solve for x
   x = 87,223,065.43/14,009.89
6. Step 6: Final answer
   x = 6,225.82