Finding the Fourth Proportional to 18,338.82, 27,499.98 and 5,188.08

Step by Step Solution

1. Step 1: Write the proportion equation
   18,338.82 : 27,499.98 = 5,188.08 : x
2. Step 2: Convert to fraction form
   18,338.82/27,499.98 = 5,188.08/x
3. Step 3: Cross multiply
   18,338.82x = 27,499.98 × 5,188.08
4. Step 4: Simplify right side
   18,338.82x = 142,672,096.24
5. Step 5: Solve for x
   x = 142,672,096.24/18,338.82
6. Step 6: Final answer
   x = 7,779.79