Finding the Fourth Proportional to 139,765.29, 192,870.07 and 79,334.83

Step by Step Solution

1. Step 1: Write the proportion equation
   139,765.29 : 192,870.07 = 79,334.83 : x
2. Step 2: Convert to fraction form
   139,765.29/192,870.07 = 79,334.83/x
3. Step 3: Cross multiply
   139,765.29x = 192,870.07 × 79,334.83
4. Step 4: Simplify right side
   139,765.29x = 15,301,314,215.54
5. Step 5: Solve for x
   x = 15,301,314,215.54/139,765.29
6. Step 6: Final answer
   x = 109,478.64