Finding the Fourth Proportional to 132,995.70, 199,502.55 and 54,111.30

Step by Step Solution

1. Step 1: Write the proportion equation
   132,995.70 : 199,502.55 = 54,111.30 : x
2. Step 2: Convert to fraction form
   132,995.70/199,502.55 = 54,111.30/x
3. Step 3: Cross multiply
   132,995.70x = 199,502.55 × 54,111.30
4. Step 4: Simplify right side
   132,995.70x = 10,795,342,333.82
5. Step 5: Solve for x
   x = 10,795,342,333.82/132,995.70
6. Step 6: Final answer
   x = 81,170.61