Finding the Fourth Proportional to 31,055.49, 42,856.56 and 16,908.33

Step by Step Solution

1. Step 1: Write the proportion equation
   31,055.49 : 42,856.56 = 16,908.33 : x
2. Step 2: Convert to fraction form
   31,055.49/42,856.56 = 16,908.33/x
3. Step 3: Cross multiply
   31,055.49x = 42,856.56 × 16,908.33
4. Step 4: Simplify right side
   31,055.49x = 724,632,881.74
5. Step 5: Solve for x
   x = 724,632,881.74/31,055.49
6. Step 6: Final answer
   x = 23,333.49