Finding the Fourth Proportional to 19,606.42, 27,068.04 and 12,911.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,606.42 : 27,068.04 = 12,911.50 : x
2. Step 2: Convert to fraction form
   19,606.42/27,068.04 = 12,911.50/x
3. Step 3: Cross multiply
   19,606.42x = 27,068.04 × 12,911.50
4. Step 4: Simplify right side
   19,606.42x = 349,488,998.46
5. Step 5: Solve for x
   x = 349,488,998.46/19,606.42
6. Step 6: Final answer
   x = 17,825.23