Finding the Fourth Proportional to 11,663.78, 17,495.61 and 3,343.79

Step by Step Solution

1. Step 1: Write the proportion equation
   11,663.78 : 17,495.61 = 3,343.79 : x
2. Step 2: Convert to fraction form
   11,663.78/17,495.61 = 3,343.79/x
3. Step 3: Cross multiply
   11,663.78x = 17,495.61 × 3,343.79
4. Step 4: Simplify right side
   11,663.78x = 58,501,558.28
5. Step 5: Solve for x
   x = 58,501,558.28/11,663.78
6. Step 6: Final answer
   x = 5,015.66