Finding the Fourth Proportional to 79,017.12, 108,980.64 and 67,119.84

Step by Step Solution

1. Step 1: Write the proportion equation
   79,017.12 : 108,980.64 = 67,119.84 : x
2. Step 2: Convert to fraction form
   79,017.12/108,980.64 = 67,119.84/x
3. Step 3: Cross multiply
   79,017.12x = 108,980.64 × 67,119.84
4. Step 4: Simplify right side
   79,017.12x = 7,314,763,119.90
5. Step 5: Solve for x
   x = 7,314,763,119.90/79,017.12
6. Step 6: Final answer
   x = 92,571.88