Finding the Fourth Proportional to 19,606.68, 27,030.72 and 13,308.12

Step by Step Solution

1. Step 1: Write the proportion equation
   19,606.68 : 27,030.72 = 13,308.12 : x
2. Step 2: Convert to fraction form
   19,606.68/27,030.72 = 13,308.12/x
3. Step 3: Cross multiply
   19,606.68x = 27,030.72 × 13,308.12
4. Step 4: Simplify right side
   19,606.68x = 359,728,065.45
5. Step 5: Solve for x
   x = 359,728,065.45/19,606.68
6. Step 6: Final answer
   x = 18,347.22