Finding the Fourth Proportional to 17,601.15, 26,405.63 and 5,122.15

Step by Step Solution

1. Step 1: Write the proportion equation
   17,601.15 : 26,405.63 = 5,122.15 : x
2. Step 2: Convert to fraction form
   17,601.15/26,405.63 = 5,122.15/x
3. Step 3: Cross multiply
   17,601.15x = 26,405.63 × 5,122.15
4. Step 4: Simplify right side
   17,601.15x = 135,253,673.82
5. Step 5: Solve for x
   x = 135,253,673.82/17,601.15
6. Step 6: Final answer
   x = 7,684.37