Finding the Fourth Proportional to 50,719.04, 69,992.72 and 30,576.96

Step by Step Solution

1. Step 1: Write the proportion equation
   50,719.04 : 69,992.72 = 30,576.96 : x
2. Step 2: Convert to fraction form
   50,719.04/69,992.72 = 30,576.96/x
3. Step 3: Cross multiply
   50,719.04x = 69,992.72 × 30,576.96
4. Step 4: Simplify right side
   50,719.04x = 2,140,164,599.73
5. Step 5: Solve for x
   x = 2,140,164,599.73/50,719.04
6. Step 6: Final answer
   x = 42,196.47