Finding the Fourth Proportional to 69,977.34, 104,963.31 and 20,057.31

Step by Step Solution

1. Step 1: Write the proportion equation
   69,977.34 : 104,963.31 = 20,057.31 : x
2. Step 2: Convert to fraction form
   69,977.34/104,963.31 = 20,057.31/x
3. Step 3: Cross multiply
   69,977.34x = 104,963.31 × 20,057.31
4. Step 4: Simplify right side
   69,977.34x = 2,105,281,647.30
5. Step 5: Solve for x
   x = 2,105,281,647.30/69,977.34
6. Step 6: Final answer
   x = 30,085.19