Finding the Fourth Proportional to 38,708.82, 53,418.98 and 21,941.82

Step by Step Solution

1. Step 1: Write the proportion equation
   38,708.82 : 53,418.98 = 21,941.82 : x
2. Step 2: Convert to fraction form
   38,708.82/53,418.98 = 21,941.82/x
3. Step 3: Cross multiply
   38,708.82x = 53,418.98 × 21,941.82
4. Step 4: Simplify right side
   38,708.82x = 1,172,109,534.03
5. Step 5: Solve for x
   x = 1,172,109,534.03/38,708.82
6. Step 6: Final answer
   x = 30,280.17