Finding the Fourth Proportional to 11,662.95, 17,576.55 and 10,553.86

Step by Step Solution

1. Step 1: Write the proportion equation
   11,662.95 : 17,576.55 = 10,553.86 : x
2. Step 2: Convert to fraction form
   11,662.95/17,576.55 = 10,553.86/x
3. Step 3: Cross multiply
   11,662.95x = 17,576.55 × 10,553.86
4. Step 4: Simplify right side
   11,662.95x = 185,500,307.33
5. Step 5: Solve for x
   x = 185,500,307.33/11,662.95
6. Step 6: Final answer
   x = 15,905.09