Finding the Fourth Proportional to 188,994.61, 260,800.18 and 104,111.67

Step by Step Solution

1. Step 1: Write the proportion equation
   188,994.61 : 260,800.18 = 104,111.67 : x
2. Step 2: Convert to fraction form
   188,994.61/260,800.18 = 104,111.67/x
3. Step 3: Cross multiply
   188,994.61x = 260,800.18 × 104,111.67
4. Step 4: Simplify right side
   188,994.61x = 27,152,342,015.82
5. Step 5: Solve for x
   x = 27,152,342,015.82/188,994.61
6. Step 6: Final answer
   x = 143,667.28