Finding the Fourth Proportional to 197,514.56, 272,605.57 and 111,499.76

Step by Step Solution

1. Step 1: Write the proportion equation
   197,514.56 : 272,605.57 = 111,499.76 : x
2. Step 2: Convert to fraction form
   197,514.56/272,605.57 = 111,499.76/x
3. Step 3: Cross multiply
   197,514.56x = 272,605.57 × 111,499.76
4. Step 4: Simplify right side
   197,514.56x = 30,395,453,987.89
5. Step 5: Solve for x
   x = 30,395,453,987.89/197,514.56
6. Step 6: Final answer
   x = 153,889.69