Finding the Fourth Proportional to 55,178, 82,779.96 and 18,242

Step by Step Solution

1. Step 1: Write the proportion equation
   55,178 : 82,779.96 = 18,242 : x
2. Step 2: Convert to fraction form
   55,178/82,779.96 = 18,242/x
3. Step 3: Cross multiply
   55,178x = 82,779.96 × 18,242
4. Step 4: Simplify right side
   55,178x = 1,510,072,030.32
5. Step 5: Solve for x
   x = 1,510,072,030.32/55,178
6. Step 6: Final answer
   x = 27,367.28