Finding the Fourth Proportional to 14,111.70, 21,167.51 and 3,723.45

Step by Step Solution

1. Step 1: Write the proportion equation
   14,111.70 : 21,167.51 = 3,723.45 : x
2. Step 2: Convert to fraction form
   14,111.70/21,167.51 = 3,723.45/x
3. Step 3: Cross multiply
   14,111.70x = 21,167.51 × 3,723.45
4. Step 4: Simplify right side
   14,111.70x = 78,816,146.49
5. Step 5: Solve for x
   x = 78,816,146.49/14,111.70
6. Step 6: Final answer
   x = 5,585.16