Finding the Fourth Proportional to 139,667.88, 192,745.14 and 76,009.17

Step by Step Solution

1. Step 1: Write the proportion equation
   139,667.88 : 192,745.14 = 76,009.17 : x
2. Step 2: Convert to fraction form
   139,667.88/192,745.14 = 76,009.17/x
3. Step 3: Cross multiply
   139,667.88x = 192,745.14 × 76,009.17
4. Step 4: Simplify right side
   139,667.88x = 14,650,398,112.93
5. Step 5: Solve for x
   x = 14,650,398,112.93/139,667.88
6. Step 6: Final answer
   x = 104,894.54