Finding the Fourth Proportional to 11,922.32, 16,441.35 and 7,141.49

Step by Step Solution

1. Step 1: Write the proportion equation
   11,922.32 : 16,441.35 = 7,141.49 : x
2. Step 2: Convert to fraction form
   11,922.32/16,441.35 = 7,141.49/x
3. Step 3: Cross multiply
   11,922.32x = 16,441.35 × 7,141.49
4. Step 4: Simplify right side
   11,922.32x = 117,415,736.61
5. Step 5: Solve for x
   x = 117,415,736.61/11,922.32
6. Step 6: Final answer
   x = 9,848.40