Finding the Fourth Proportional to 13,454.21, 18,592.42 and 10,091.19

Step by Step Solution

1. Step 1: Write the proportion equation
   13,454.21 : 18,592.42 = 10,091.19 : x
2. Step 2: Convert to fraction form
   13,454.21/18,592.42 = 10,091.19/x
3. Step 3: Cross multiply
   13,454.21x = 18,592.42 × 10,091.19
4. Step 4: Simplify right side
   13,454.21x = 187,619,642.78
5. Step 5: Solve for x
   x = 187,619,642.78/13,454.21
6. Step 6: Final answer
   x = 13,945.05