Finding the Fourth Proportional to 17,330.31, 25,998.71 and 5,640.39

Step by Step Solution

1. Step 1: Write the proportion equation
   17,330.31 : 25,998.71 = 5,640.39 : x
2. Step 2: Convert to fraction form
   17,330.31/25,998.71 = 5,640.39/x
3. Step 3: Cross multiply
   17,330.31x = 25,998.71 × 5,640.39
4. Step 4: Simplify right side
   17,330.31x = 146,642,835.69
5. Step 5: Solve for x
   x = 146,642,835.69/17,330.31
6. Step 6: Final answer
   x = 8,461.64