Finding the Fourth Proportional to 48,633.69, 72,958.31 and 20,554.01

Step by Step Solution

1. Step 1: Write the proportion equation
   48,633.69 : 72,958.31 = 20,554.01 : x
2. Step 2: Convert to fraction form
   48,633.69/72,958.31 = 20,554.01/x
3. Step 3: Cross multiply
   48,633.69x = 72,958.31 × 20,554.01
4. Step 4: Simplify right side
   48,633.69x = 1,499,585,833.32
5. Step 5: Solve for x
   x = 1,499,585,833.32/48,633.69
6. Step 6: Final answer
   x = 30,834.30