Finding the Fourth Proportional to 53,596.38, 80,406.72 and 18,536.34

Step by Step Solution

1. Step 1: Write the proportion equation
   53,596.38 : 80,406.72 = 18,536.34 : x
2. Step 2: Convert to fraction form
   53,596.38/80,406.72 = 18,536.34/x
3. Step 3: Cross multiply
   53,596.38x = 80,406.72 × 18,536.34
4. Step 4: Simplify right side
   53,596.38x = 1,490,446,300.20
5. Step 5: Solve for x
   x = 1,490,446,300.20/53,596.38
6. Step 6: Final answer
   x = 27,808.71