Finding the Fourth Proportional to 14,142.12, 21,212.52 and 5,820.06

Step by Step Solution

1. Step 1: Write the proportion equation
   14,142.12 : 21,212.52 = 5,820.06 : x
2. Step 2: Convert to fraction form
   14,142.12/21,212.52 = 5,820.06/x
3. Step 3: Cross multiply
   14,142.12x = 21,212.52 × 5,820.06
4. Step 4: Simplify right side
   14,142.12x = 123,458,139.15
5. Step 5: Solve for x
   x = 123,458,139.15/14,142.12
6. Step 6: Final answer
   x = 8,729.82