Finding the Fourth Proportional to 196,291.76, 270,890.88 and 111,416.72

Step by Step Solution

1. Step 1: Write the proportion equation
   196,291.76 : 270,890.88 = 111,416.72 : x
2. Step 2: Convert to fraction form
   196,291.76/270,890.88 = 111,416.72/x
3. Step 3: Cross multiply
   196,291.76x = 270,890.88 × 111,416.72
4. Step 4: Simplify right side
   196,291.76x = 30,181,773,327.51
5. Step 5: Solve for x
   x = 30,181,773,327.51/196,291.76
6. Step 6: Final answer
   x = 153,759.76