Finding the Fourth Proportional to 195,978.96, 270,442.80 and 111,101.76

Step by Step Solution

1. Step 1: Write the proportion equation
   195,978.96 : 270,442.80 = 111,101.76 : x
2. Step 2: Convert to fraction form
   195,978.96/270,442.80 = 111,101.76/x
3. Step 3: Cross multiply
   195,978.96x = 270,442.80 × 111,101.76
4. Step 4: Simplify right side
   195,978.96x = 30,046,671,059.33
5. Step 5: Solve for x
   x = 30,046,671,059.33/195,978.96
6. Step 6: Final answer
   x = 153,315.80