Finding the Fourth Proportional to 191,514.72, 264,301.24 and 115,057.20

Step by Step Solution

1. Step 1: Write the proportion equation
   191,514.72 : 264,301.24 = 115,057.20 : x
2. Step 2: Convert to fraction form
   191,514.72/264,301.24 = 115,057.20/x
3. Step 3: Cross multiply
   191,514.72x = 264,301.24 × 115,057.20
4. Step 4: Simplify right side
   191,514.72x = 30,409,760,630.93
5. Step 5: Solve for x
   x = 30,409,760,630.93/191,514.72
6. Step 6: Final answer
   x = 158,785.50