Finding the Fourth Proportional to 14,092.31, 21,139.72 and 3,704.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,092.31 : 21,139.72 = 3,704.06 : x
2. Step 2: Convert to fraction form
   14,092.31/21,139.72 = 3,704.06/x
3. Step 3: Cross multiply
   14,092.31x = 21,139.72 × 3,704.06
4. Step 4: Simplify right side
   14,092.31x = 78,302,834.85
5. Step 5: Solve for x
   x = 78,302,834.85/14,092.31
6. Step 6: Final answer
   x = 5,556.42