Finding the Fourth Proportional to 53,517.86, 80,285.98 and 17,982.57

Step by Step Solution

1. Step 1: Write the proportion equation
   53,517.86 : 80,285.98 = 17,982.57 : x
2. Step 2: Convert to fraction form
   53,517.86/80,285.98 = 17,982.57/x
3. Step 3: Cross multiply
   53,517.86x = 80,285.98 × 17,982.57
4. Step 4: Simplify right side
   53,517.86x = 1,443,748,255.37
5. Step 5: Solve for x
   x = 1,443,748,255.37/53,517.86
6. Step 6: Final answer
   x = 26,976.94