Finding the Fourth Proportional to 18,499.98, 25,528.01 and 10,946.63

Step by Step Solution

1. Step 1: Write the proportion equation
   18,499.98 : 25,528.01 = 10,946.63 : x
2. Step 2: Convert to fraction form
   18,499.98/25,528.01 = 10,946.63/x
3. Step 3: Cross multiply
   18,499.98x = 25,528.01 × 10,946.63
4. Step 4: Simplify right side
   18,499.98x = 279,445,625.37
5. Step 5: Solve for x
   x = 279,445,625.37/18,499.98
6. Step 6: Final answer
   x = 15,105.19