Finding the Fourth Proportional to 19,810.58, 27,346.04 and 13,105.37

Step by Step Solution

1. Step 1: Write the proportion equation
   19,810.58 : 27,346.04 = 13,105.37 : x
2. Step 2: Convert to fraction form
   19,810.58/27,346.04 = 13,105.37/x
3. Step 3: Cross multiply
   19,810.58x = 27,346.04 × 13,105.37
4. Step 4: Simplify right side
   19,810.58x = 358,380,002.60
5. Step 5: Solve for x
   x = 358,380,002.60/19,810.58
6. Step 6: Final answer
   x = 18,090.34