Finding the Fourth Proportional to 19,941.16, 29,920.38 and 10,705

Step by Step Solution

1. Step 1: Write the proportion equation
   19,941.16 : 29,920.38 = 10,705 : x
2. Step 2: Convert to fraction form
   19,941.16/29,920.38 = 10,705/x
3. Step 3: Cross multiply
   19,941.16x = 29,920.38 × 10,705
4. Step 4: Simplify right side
   19,941.16x = 320,297,667.90
5. Step 5: Solve for x
   x = 320,297,667.90/19,941.16
6. Step 6: Final answer
   x = 16,062.14