Finding the Fourth Proportional to 11,639.16, 17,429.94 and 10,900.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,639.16 : 17,429.94 = 10,900.98 : x
2. Step 2: Convert to fraction form
   11,639.16/17,429.94 = 10,900.98/x
3. Step 3: Cross multiply
   11,639.16x = 17,429.94 × 10,900.98
4. Step 4: Simplify right side
   11,639.16x = 190,003,427.34
5. Step 5: Solve for x
   x = 190,003,427.34/11,639.16
6. Step 6: Final answer
   x = 16,324.50