Finding the Fourth Proportional to 53,978.34, 80,969.94 and 16,535.68

Step by Step Solution

1. Step 1: Write the proportion equation
   53,978.34 : 80,969.94 = 16,535.68 : x
2. Step 2: Convert to fraction form
   53,978.34/80,969.94 = 16,535.68/x
3. Step 3: Cross multiply
   53,978.34x = 80,969.94 × 16,535.68
4. Step 4: Simplify right side
   53,978.34x = 1,338,893,017.46
5. Step 5: Solve for x
   x = 1,338,893,017.46/53,978.34
6. Step 6: Final answer
   x = 24,804.26