Finding the Fourth Proportional to 55,845, 83,779.86 and 18,403.56

Step by Step Solution

1. Step 1: Write the proportion equation
   55,845 : 83,779.86 = 18,403.56 : x
2. Step 2: Convert to fraction form
   55,845/83,779.86 = 18,403.56/x
3. Step 3: Cross multiply
   55,845x = 83,779.86 × 18,403.56
4. Step 4: Simplify right side
   55,845x = 1,541,847,680.30
5. Step 5: Solve for x
   x = 1,541,847,680.30/55,845
6. Step 6: Final answer
   x = 27,609.41