Finding the Fourth Proportional to 19,605.60, 27,061.92 and 12,532.05

Step by Step Solution

1. Step 1: Write the proportion equation
   19,605.60 : 27,061.92 = 12,532.05 : x
2. Step 2: Convert to fraction form
   19,605.60/27,061.92 = 12,532.05/x
3. Step 3: Cross multiply
   19,605.60x = 27,061.92 × 12,532.05
4. Step 4: Simplify right side
   19,605.60x = 339,141,334.54
5. Step 5: Solve for x
   x = 339,141,334.54/19,605.60
6. Step 6: Final answer
   x = 17,298.19