Finding the Fourth Proportional to 188,112.72, 259,598.72 and 103,237.68

Step by Step Solution

1. Step 1: Write the proportion equation
   188,112.72 : 259,598.72 = 103,237.68 : x
2. Step 2: Convert to fraction form
   188,112.72/259,598.72 = 103,237.68/x
3. Step 3: Cross multiply
   188,112.72x = 259,598.72 × 103,237.68
4. Step 4: Simplify right side
   188,112.72x = 26,800,369,583.77
5. Step 5: Solve for x
   x = 26,800,369,583.77/188,112.72
6. Step 6: Final answer
   x = 142,469.74