Finding the Fourth Proportional to 188,111.71, 259,597.34 and 103,236.67

Step by Step Solution

1. Step 1: Write the proportion equation
   188,111.71 : 259,597.34 = 103,236.67 : x
2. Step 2: Convert to fraction form
   188,111.71/259,597.34 = 103,236.67/x
3. Step 3: Cross multiply
   188,111.71x = 259,597.34 × 103,236.67
4. Step 4: Simplify right side
   188,111.71x = 26,799,964,922.46
5. Step 5: Solve for x
   x = 26,799,964,922.46/188,111.71
6. Step 6: Final answer
   x = 142,468.35