Finding the Fourth Proportional to 19,499.41, 29,238.31 and 9,105.49

Step by Step Solution

1. Step 1: Write the proportion equation
   19,499.41 : 29,238.31 = 9,105.49 : x
2. Step 2: Convert to fraction form
   19,499.41/29,238.31 = 9,105.49/x
3. Step 3: Cross multiply
   19,499.41x = 29,238.31 × 9,105.49
4. Step 4: Simplify right side
   19,499.41x = 266,229,139.32
5. Step 5: Solve for x
   x = 266,229,139.32/19,499.41
6. Step 6: Final answer
   x = 13,653.19