Finding the Fourth Proportional to 11,902.82, 16,388.43 and 10,106.75

Step by Step Solution

1. Step 1: Write the proportion equation
   11,902.82 : 16,388.43 = 10,106.75 : x
2. Step 2: Convert to fraction form
   11,902.82/16,388.43 = 10,106.75/x
3. Step 3: Cross multiply
   11,902.82x = 16,388.43 × 10,106.75
4. Step 4: Simplify right side
   11,902.82x = 165,633,682.96
5. Step 5: Solve for x
   x = 165,633,682.96/11,902.82
6. Step 6: Final answer
   x = 13,915.51