Finding the Fourth Proportional to 188,285.68, 259,838.72 and 103,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   188,285.68 : 259,838.72 = 103,404.56 : x
2. Step 2: Convert to fraction form
   188,285.68/259,838.72 = 103,404.56/x
3. Step 3: Cross multiply
   188,285.68x = 259,838.72 × 103,404.56
4. Step 4: Simplify right side
   188,285.68x = 26,868,508,512.56
5. Step 5: Solve for x
   x = 26,868,508,512.56/188,285.68
6. Step 6: Final answer
   x = 142,700.75