Finding the Fourth Proportional to 81,973.10, 113,127.70 and 50,148.10

Step by Step Solution

1. Step 1: Write the proportion equation
   81,973.10 : 113,127.70 = 50,148.10 : x
2. Step 2: Convert to fraction form
   81,973.10/113,127.70 = 50,148.10/x
3. Step 3: Cross multiply
   81,973.10x = 113,127.70 × 50,148.10
4. Step 4: Simplify right side
   81,973.10x = 5,673,139,212.37
5. Step 5: Solve for x
   x = 5,673,139,212.37/81,973.10
6. Step 6: Final answer
   x = 69,207.33