Finding the Fourth Proportional to 31,488.10, 43,453.29 and 17,340.64

Step by Step Solution

1. Step 1: Write the proportion equation
   31,488.10 : 43,453.29 = 17,340.64 : x
2. Step 2: Convert to fraction form
   31,488.10/43,453.29 = 17,340.64/x
3. Step 3: Cross multiply
   31,488.10x = 43,453.29 × 17,340.64
4. Step 4: Simplify right side
   31,488.10x = 753,507,858.71
5. Step 5: Solve for x
   x = 753,507,858.71/31,488.10
6. Step 6: Final answer
   x = 23,929.92