Finding the Fourth Proportional to 188,300.25, 259,856.17 and 103,419.14

Step by Step Solution

1. Step 1: Write the proportion equation
   188,300.25 : 259,856.17 = 103,419.14 : x
2. Step 2: Convert to fraction form
   188,300.25/259,856.17 = 103,419.14/x
3. Step 3: Cross multiply
   188,300.25x = 259,856.17 × 103,419.14
4. Step 4: Simplify right side
   188,300.25x = 26,874,100,067.27
5. Step 5: Solve for x
   x = 26,874,100,067.27/188,300.25
6. Step 6: Final answer
   x = 142,719.41