Finding the Fourth Proportional to 14,109.82, 21,146.45 and 10,571.94

Step by Step Solution

1. Step 1: Write the proportion equation
   14,109.82 : 21,146.45 = 10,571.94 : x
2. Step 2: Convert to fraction form
   14,109.82/21,146.45 = 10,571.94/x
3. Step 3: Cross multiply
   14,109.82x = 21,146.45 × 10,571.94
4. Step 4: Simplify right side
   14,109.82x = 223,559,000.61
5. Step 5: Solve for x
   x = 223,559,000.61/14,109.82
6. Step 6: Final answer
   x = 15,844.21