Finding the Fourth Proportional to 17,608.82, 26,411.90 and 5,128.94

Step by Step Solution

1. Step 1: Write the proportion equation
   17,608.82 : 26,411.90 = 5,128.94 : x
2. Step 2: Convert to fraction form
   17,608.82/26,411.90 = 5,128.94/x
3. Step 3: Cross multiply
   17,608.82x = 26,411.90 × 5,128.94
4. Step 4: Simplify right side
   17,608.82x = 135,465,050.39
5. Step 5: Solve for x
   x = 135,465,050.39/17,608.82
6. Step 6: Final answer
   x = 7,693.02