Finding the Fourth Proportional to 78,311.33, 108,028.81 and 48,103.46

Step by Step Solution

1. Step 1: Write the proportion equation
   78,311.33 : 108,028.81 = 48,103.46 : x
2. Step 2: Convert to fraction form
   78,311.33/108,028.81 = 48,103.46/x
3. Step 3: Cross multiply
   78,311.33x = 108,028.81 × 48,103.46
4. Step 4: Simplify right side
   78,311.33x = 5,196,558,760.02
5. Step 5: Solve for x
   x = 5,196,558,760.02/78,311.33
6. Step 6: Final answer
   x = 66,357.69