Finding the Fourth Proportional to 19,908.59, 29,881.33 and 10,054.78

Step by Step Solution

1. Step 1: Write the proportion equation
   19,908.59 : 29,881.33 = 10,054.78 : x
2. Step 2: Convert to fraction form
   19,908.59/29,881.33 = 10,054.78/x
3. Step 3: Cross multiply
   19,908.59x = 29,881.33 × 10,054.78
4. Step 4: Simplify right side
   19,908.59x = 300,450,295.78
5. Step 5: Solve for x
   x = 300,450,295.78/19,908.59
6. Step 6: Final answer
   x = 15,091.49