Finding the Fourth Proportional to 11,938.23, 17,910.06 and 3,618.48

Step by Step Solution

1. Step 1: Write the proportion equation
   11,938.23 : 17,910.06 = 3,618.48 : x
2. Step 2: Convert to fraction form
   11,938.23/17,910.06 = 3,618.48/x
3. Step 3: Cross multiply
   11,938.23x = 17,910.06 × 3,618.48
4. Step 4: Simplify right side
   11,938.23x = 64,807,193.91
5. Step 5: Solve for x
   x = 64,807,193.91/11,938.23
6. Step 6: Final answer
   x = 5,428.54