Finding the Fourth Proportional to 67,969.80, 101,906.10 and 30,499.20

Step by Step Solution

1. Step 1: Write the proportion equation
   67,969.80 : 101,906.10 = 30,499.20 : x
2. Step 2: Convert to fraction form
   67,969.80/101,906.10 = 30,499.20/x
3. Step 3: Cross multiply
   67,969.80x = 101,906.10 × 30,499.20
4. Step 4: Simplify right side
   67,969.80x = 3,108,054,525.12
5. Step 5: Solve for x
   x = 3,108,054,525.12/67,969.80
6. Step 6: Final answer
   x = 45,726.99