Finding the Fourth Proportional to 69,802, 104,722.20 and 20,554

Step by Step Solution

1. Step 1: Write the proportion equation
   69,802 : 104,722.20 = 20,554 : x
2. Step 2: Convert to fraction form
   69,802/104,722.20 = 20,554/x
3. Step 3: Cross multiply
   69,802x = 104,722.20 × 20,554
4. Step 4: Simplify right side
   69,802x = 2,152,460,098.80
5. Step 5: Solve for x
   x = 2,152,460,098.80/69,802
6. Step 6: Final answer
   x = 30,836.65