Finding the Fourth Proportional to 53,796.56, 80,727.72 and 31,653.20

Step by Step Solution

1. Step 1: Write the proportion equation
   53,796.56 : 80,727.72 = 31,653.20 : x
2. Step 2: Convert to fraction form
   53,796.56/80,727.72 = 31,653.20/x
3. Step 3: Cross multiply
   53,796.56x = 80,727.72 × 31,653.20
4. Step 4: Simplify right side
   53,796.56x = 2,555,290,666.70
5. Step 5: Solve for x
   x = 2,555,290,666.70/53,796.56
6. Step 6: Final answer
   x = 47,499.15