Finding the Fourth Proportional to 31,320.88, 43,222.75 and 17,173.69

Step by Step Solution

1. Step 1: Write the proportion equation
   31,320.88 : 43,222.75 = 17,173.69 : x
2. Step 2: Convert to fraction form
   31,320.88/43,222.75 = 17,173.69/x
3. Step 3: Cross multiply
   31,320.88x = 43,222.75 × 17,173.69
4. Step 4: Simplify right side
   31,320.88x = 742,293,958.46
5. Step 5: Solve for x
   x = 742,293,958.46/31,320.88
6. Step 6: Final answer
   x = 23,699.65