Finding the Fourth Proportional to 6,663.63, 10,001.61 and 3,379.05

Step by Step Solution

1. Step 1: Write the proportion equation
   6,663.63 : 10,001.61 = 3,379.05 : x
2. Step 2: Convert to fraction form
   6,663.63/10,001.61 = 3,379.05/x
3. Step 3: Cross multiply
   6,663.63x = 10,001.61 × 3,379.05
4. Step 4: Simplify right side
   6,663.63x = 33,795,940.27
5. Step 5: Solve for x
   x = 33,795,940.27/6,663.63
6. Step 6: Final answer
   x = 5,071.70