Finding the Fourth Proportional to 17,388.48, 26,084.76 and 5,538.09

Step by Step Solution

1. Step 1: Write the proportion equation
   17,388.48 : 26,084.76 = 5,538.09 : x
2. Step 2: Convert to fraction form
   17,388.48/26,084.76 = 5,538.09/x
3. Step 3: Cross multiply
   17,388.48x = 26,084.76 × 5,538.09
4. Step 4: Simplify right side
   17,388.48x = 144,459,720.82
5. Step 5: Solve for x
   x = 144,459,720.82/17,388.48
6. Step 6: Final answer
   x = 8,307.78