Finding the Fourth Proportional to 11,644.79, 17,433.50 and 10,442.93

Step by Step Solution

1. Step 1: Write the proportion equation
   11,644.79 : 17,433.50 = 10,442.93 : x
2. Step 2: Convert to fraction form
   11,644.79/17,433.50 = 10,442.93/x
3. Step 3: Cross multiply
   11,644.79x = 17,433.50 × 10,442.93
4. Step 4: Simplify right side
   11,644.79x = 182,056,680.77
5. Step 5: Solve for x
   x = 182,056,680.77/11,644.79
6. Step 6: Final answer
   x = 15,634.18