Finding the Fourth Proportional to 12,981.94, 19,480.48 and 8,545.08

Step by Step Solution

1. Step 1: Write the proportion equation
   12,981.94 : 19,480.48 = 8,545.08 : x
2. Step 2: Convert to fraction form
   12,981.94/19,480.48 = 8,545.08/x
3. Step 3: Cross multiply
   12,981.94x = 19,480.48 × 8,545.08
4. Step 4: Simplify right side
   12,981.94x = 166,462,260.04
5. Step 5: Solve for x
   x = 166,462,260.04/12,981.94
6. Step 6: Final answer
   x = 12,822.60