Finding the Fourth Proportional to 11,663.89, 17,487.63 and 5,417.27

Step by Step Solution

1. Step 1: Write the proportion equation
   11,663.89 : 17,487.63 = 5,417.27 : x
2. Step 2: Convert to fraction form
   11,663.89/17,487.63 = 5,417.27/x
3. Step 3: Cross multiply
   11,663.89x = 17,487.63 × 5,417.27
4. Step 4: Simplify right side
   11,663.89x = 94,735,191.51
5. Step 5: Solve for x
   x = 94,735,191.51/11,663.89
6. Step 6: Final answer
   x = 8,122.09