Finding the Fourth Proportional to 31,127.14, 42,955.82 and 16,980.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,127.14 : 42,955.82 = 16,980.22 : x
2. Step 2: Convert to fraction form
   31,127.14/42,955.82 = 16,980.22/x
3. Step 3: Cross multiply
   31,127.14x = 42,955.82 × 16,980.22
4. Step 4: Simplify right side
   31,127.14x = 729,399,273.88
5. Step 5: Solve for x
   x = 729,399,273.88/31,127.14
6. Step 6: Final answer
   x = 23,432.90