Finding the Fourth Proportional to 132,642.72, 199,002.96 and 53,813.52

Step by Step Solution

1. Step 1: Write the proportion equation
   132,642.72 : 199,002.96 = 53,813.52 : x
2. Step 2: Convert to fraction form
   132,642.72/199,002.96 = 53,813.52/x
3. Step 3: Cross multiply
   132,642.72x = 199,002.96 × 53,813.52
4. Step 4: Simplify right side
   132,642.72x = 10,709,049,768.02
5. Step 5: Solve for x
   x = 10,709,049,768.02/132,642.72
6. Step 6: Final answer
   x = 80,736.05