Finding the Fourth Proportional to 31,077.46, 42,887.06 and 16,930.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,077.46 : 42,887.06 = 16,930.32 : x
2. Step 2: Convert to fraction form
   31,077.46/42,887.06 = 16,930.32/x
3. Step 3: Cross multiply
   31,077.46x = 42,887.06 × 16,930.32
4. Step 4: Simplify right side
   31,077.46x = 726,091,649.66
5. Step 5: Solve for x
   x = 726,091,649.66/31,077.46
6. Step 6: Final answer
   x = 23,363.93