Finding the Fourth Proportional to 19,935.50, 29,921.67 and 10,081.71

Step by Step Solution

1. Step 1: Write the proportion equation
   19,935.50 : 29,921.67 = 10,081.71 : x
2. Step 2: Convert to fraction form
   19,935.50/29,921.67 = 10,081.71/x
3. Step 3: Cross multiply
   19,935.50x = 29,921.67 × 10,081.71
4. Step 4: Simplify right side
   19,935.50x = 301,661,599.66
5. Step 5: Solve for x
   x = 301,661,599.66/19,935.50
6. Step 6: Final answer
   x = 15,131.88