Finding the Fourth Proportional to 139,370.49, 192,390.12 and 94,109.76

Step by Step Solution

1. Step 1: Write the proportion equation
   139,370.49 : 192,390.12 = 94,109.76 : x
2. Step 2: Convert to fraction form
   139,370.49/192,390.12 = 94,109.76/x
3. Step 3: Cross multiply
   139,370.49x = 192,390.12 × 94,109.76
4. Step 4: Simplify right side
   139,370.49x = 18,105,788,019.57
5. Step 5: Solve for x
   x = 18,105,788,019.57/139,370.49
6. Step 6: Final answer
   x = 129,911.20