Finding the Fourth Proportional to 67,993.40, 101,990.18 and 21,246.52

Step by Step Solution

1. Step 1: Write the proportion equation
   67,993.40 : 101,990.18 = 21,246.52 : x
2. Step 2: Convert to fraction form
   67,993.40/101,990.18 = 21,246.52/x
3. Step 3: Cross multiply
   67,993.40x = 101,990.18 × 21,246.52
4. Step 4: Simplify right side
   67,993.40x = 2,166,936,399.17
5. Step 5: Solve for x
   x = 2,166,936,399.17/67,993.40
6. Step 6: Final answer
   x = 31,869.80