Finding the Fourth Proportional to 18,238.73, 27,355.64 and 5,090.00

Step by Step Solution

1. Step 1: Write the proportion equation
   18,238.73 : 27,355.64 = 5,090.00 : x
2. Step 2: Convert to fraction form
   18,238.73/27,355.64 = 5,090.00/x
3. Step 3: Cross multiply
   18,238.73x = 27,355.64 × 5,090.00
4. Step 4: Simplify right side
   18,238.73x = 139,240,045.37
5. Step 5: Solve for x
   x = 139,240,045.37/18,238.73
6. Step 6: Final answer
   x = 7,634.31