Finding the Fourth Proportional to 70,610.52, 105,930.32 and 20,692.24

Step by Step Solution

1. Step 1: Write the proportion equation
   70,610.52 : 105,930.32 = 20,692.24 : x
2. Step 2: Convert to fraction form
   70,610.52/105,930.32 = 20,692.24/x
3. Step 3: Cross multiply
   70,610.52x = 105,930.32 × 20,692.24
4. Step 4: Simplify right side
   70,610.52x = 2,191,935,604.72
5. Step 5: Solve for x
   x = 2,191,935,604.72/70,610.52
6. Step 6: Final answer
   x = 31,042.62