Finding the Fourth Proportional to 19,665.38, 27,111.69 and 19,053.86

Step by Step Solution

1. Step 1: Write the proportion equation
   19,665.38 : 27,111.69 = 19,053.86 : x
2. Step 2: Convert to fraction form
   19,665.38/27,111.69 = 19,053.86/x
3. Step 3: Cross multiply
   19,665.38x = 27,111.69 × 19,053.86
4. Step 4: Simplify right side
   19,665.38x = 516,582,345.62
5. Step 5: Solve for x
   x = 516,582,345.62/19,665.38
6. Step 6: Final answer
   x = 26,268.62