Finding the Fourth Proportional to 45,258.30, 67,860.18 and 20,293.83

Step by Step Solution

1. Step 1: Write the proportion equation
   45,258.30 : 67,860.18 = 20,293.83 : x
2. Step 2: Convert to fraction form
   45,258.30/67,860.18 = 20,293.83/x
3. Step 3: Cross multiply
   45,258.30x = 67,860.18 × 20,293.83
4. Step 4: Simplify right side
   45,258.30x = 1,377,142,956.69
5. Step 5: Solve for x
   x = 1,377,142,956.69/45,258.30
6. Step 6: Final answer
   x = 30,428.52