Finding the Fourth Proportional to 11,935.78, 17,905.59 and 4,146.82

Step by Step Solution

1. Step 1: Write the proportion equation
   11,935.78 : 17,905.59 = 4,146.82 : x
2. Step 2: Convert to fraction form
   11,935.78/17,905.59 = 4,146.82/x
3. Step 3: Cross multiply
   11,935.78x = 17,905.59 × 4,146.82
4. Step 4: Simplify right side
   11,935.78x = 74,251,258.72
5. Step 5: Solve for x
   x = 74,251,258.72/11,935.78
6. Step 6: Final answer
   x = 6,220.90