Finding the Fourth Proportional to 70,796.04, 106,196.37 and 20,871.96

Step by Step Solution

1. Step 1: Write the proportion equation
   70,796.04 : 106,196.37 = 20,871.96 : x
2. Step 2: Convert to fraction form
   70,796.04/106,196.37 = 20,871.96/x
3. Step 3: Cross multiply
   70,796.04x = 106,196.37 × 20,871.96
4. Step 4: Simplify right side
   70,796.04x = 2,216,525,751.44
5. Step 5: Solve for x
   x = 2,216,525,751.44/70,796.04
6. Step 6: Final answer
   x = 31,308.61