Finding the Fourth Proportional to 19,359.88, 29,016.10 and 13,783

Step by Step Solution

1. Step 1: Write the proportion equation
   19,359.88 : 29,016.10 = 13,783 : x
2. Step 2: Convert to fraction form
   19,359.88/29,016.10 = 13,783/x
3. Step 3: Cross multiply
   19,359.88x = 29,016.10 × 13,783
4. Step 4: Simplify right side
   19,359.88x = 399,928,906.30
5. Step 5: Solve for x
   x = 399,928,906.30/19,359.88
6. Step 6: Final answer
   x = 20,657.61