Finding the Fourth Proportional to 23,053.78, 34,579.05 and 13,162.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,053.78 : 34,579.05 = 13,162.06 : x
2. Step 2: Convert to fraction form
   23,053.78/34,579.05 = 13,162.06/x
3. Step 3: Cross multiply
   23,053.78x = 34,579.05 × 13,162.06
4. Step 4: Simplify right side
   23,053.78x = 455,131,530.84
5. Step 5: Solve for x
   x = 455,131,530.84/23,053.78
6. Step 6: Final answer
   x = 19,742.17