Finding the Fourth Proportional to 53,381.61, 80,009.86 and 21,771.94

Step by Step Solution

1. Step 1: Write the proportion equation
   53,381.61 : 80,009.86 = 21,771.94 : x
2. Step 2: Convert to fraction form
   53,381.61/80,009.86 = 21,771.94/x
3. Step 3: Cross multiply
   53,381.61x = 80,009.86 × 21,771.94
4. Step 4: Simplify right side
   53,381.61x = 1,741,969,871.33
5. Step 5: Solve for x
   x = 1,741,969,871.33/53,381.61
6. Step 6: Final answer
   x = 32,632.40