Finding the Fourth Proportional to 53,422.69, 80,152.62 and 20,152.30

Step by Step Solution

1. Step 1: Write the proportion equation
   53,422.69 : 80,152.62 = 20,152.30 : x
2. Step 2: Convert to fraction form
   53,422.69/80,152.62 = 20,152.30/x
3. Step 3: Cross multiply
   53,422.69x = 80,152.62 × 20,152.30
4. Step 4: Simplify right side
   53,422.69x = 1,615,259,644.03
5. Step 5: Solve for x
   x = 1,615,259,644.03/53,422.69
6. Step 6: Final answer
   x = 30,235.46