Finding the Fourth Proportional to 132,004.72, 198,016.32 and 53,119.31

Step by Step Solution

1. Step 1: Write the proportion equation
   132,004.72 : 198,016.32 = 53,119.31 : x
2. Step 2: Convert to fraction form
   132,004.72/198,016.32 = 53,119.31/x
3. Step 3: Cross multiply
   132,004.72x = 198,016.32 × 53,119.31
4. Step 4: Simplify right side
   132,004.72x = 10,518,490,287.14
5. Step 5: Solve for x
   x = 10,518,490,287.14/132,004.72
6. Step 6: Final answer
   x = 79,682.69