Finding the Fourth Proportional to 25,505.81, 35,196.18 and 15,949.98

Step by Step Solution

1. Step 1: Write the proportion equation
   25,505.81 : 35,196.18 = 15,949.98 : x
2. Step 2: Convert to fraction form
   25,505.81/35,196.18 = 15,949.98/x
3. Step 3: Cross multiply
   25,505.81x = 35,196.18 × 15,949.98
4. Step 4: Simplify right side
   25,505.81x = 561,378,499.06
5. Step 5: Solve for x
   x = 561,378,499.06/25,505.81
6. Step 6: Final answer
   x = 22,009.83