Finding the Fourth Proportional to 31,090.88, 42,904.92 and 16,943.84

Step by Step Solution

1. Step 1: Write the proportion equation
   31,090.88 : 42,904.92 = 16,943.84 : x
2. Step 2: Convert to fraction form
   31,090.88/42,904.92 = 16,943.84/x
3. Step 3: Cross multiply
   31,090.88x = 42,904.92 × 16,943.84
4. Step 4: Simplify right side
   31,090.88x = 726,974,099.69
5. Step 5: Solve for x
   x = 726,974,099.69/31,090.88
6. Step 6: Final answer
   x = 23,382.23