Finding the Fourth Proportional to 53,535.35, 80,249.56 and 35,780.96

Step by Step Solution

1. Step 1: Write the proportion equation
   53,535.35 : 80,249.56 = 35,780.96 : x
2. Step 2: Convert to fraction form
   53,535.35/80,249.56 = 35,780.96/x
3. Step 3: Cross multiply
   53,535.35x = 80,249.56 × 35,780.96
4. Step 4: Simplify right side
   53,535.35x = 2,871,406,407.55
5. Step 5: Solve for x
   x = 2,871,406,407.55/53,535.35
6. Step 6: Final answer
   x = 53,635.71