Finding the Fourth Proportional to 139,667.64, 192,744.78 and 76,008.92

Step by Step Solution

1. Step 1: Write the proportion equation
   139,667.64 : 192,744.78 = 76,008.92 : x
2. Step 2: Convert to fraction form
   139,667.64/192,744.78 = 76,008.92/x
3. Step 3: Cross multiply
   139,667.64x = 192,744.78 × 76,008.92
4. Step 4: Simplify right side
   139,667.64x = 14,650,322,563.44
5. Step 5: Solve for x
   x = 14,650,322,563.44/139,667.64
6. Step 6: Final answer
   x = 104,894.18