Finding the Fourth Proportional to 16,981.39, 25,475.67 and 5,136.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,981.39 : 25,475.67 = 5,136.04 : x
2. Step 2: Convert to fraction form
   16,981.39/25,475.67 = 5,136.04/x
3. Step 3: Cross multiply
   16,981.39x = 25,475.67 × 5,136.04
4. Step 4: Simplify right side
   16,981.39x = 130,844,123.84
5. Step 5: Solve for x
   x = 130,844,123.84/16,981.39
6. Step 6: Final answer
   x = 7,705.15