Finding the Fourth Proportional to 13,012.22, 19,494.84 and 10,945.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,012.22 : 19,494.84 = 10,945.10 : x
2. Step 2: Convert to fraction form
   13,012.22/19,494.84 = 10,945.10/x
3. Step 3: Cross multiply
   13,012.22x = 19,494.84 × 10,945.10
4. Step 4: Simplify right side
   13,012.22x = 213,372,973.28
5. Step 5: Solve for x
   x = 213,372,973.28/13,012.22
6. Step 6: Final answer
   x = 16,397.89