Finding the Fourth Proportional to 48,724.72, 73,116.23 and 21,022.72

Step by Step Solution

1. Step 1: Write the proportion equation
   48,724.72 : 73,116.23 = 21,022.72 : x
2. Step 2: Convert to fraction form
   48,724.72/73,116.23 = 21,022.72/x
3. Step 3: Cross multiply
   48,724.72x = 73,116.23 × 21,022.72
4. Step 4: Simplify right side
   48,724.72x = 1,537,101,742.84
5. Step 5: Solve for x
   x = 1,537,101,742.84/48,724.72
6. Step 6: Final answer
   x = 31,546.65