Finding the Fourth Proportional to 17,253.23, 25,879.80 and 5,407.91

Step by Step Solution

1. Step 1: Write the proportion equation
   17,253.23 : 25,879.80 = 5,407.91 : x
2. Step 2: Convert to fraction form
   17,253.23/25,879.80 = 5,407.91/x
3. Step 3: Cross multiply
   17,253.23x = 25,879.80 × 5,407.91
4. Step 4: Simplify right side
   17,253.23x = 139,955,499.82
5. Step 5: Solve for x
   x = 139,955,499.82/17,253.23
6. Step 6: Final answer
   x = 8,111.85