Finding the Fourth Proportional to 31,141.08, 42,976.44 and 16,994.16

Step by Step Solution

1. Step 1: Write the proportion equation
   31,141.08 : 42,976.44 = 16,994.16 : x
2. Step 2: Convert to fraction form
   31,141.08/42,976.44 = 16,994.16/x
3. Step 3: Cross multiply
   31,141.08x = 42,976.44 × 16,994.16
4. Step 4: Simplify right side
   31,141.08x = 730,348,497.59
5. Step 5: Solve for x
   x = 730,348,497.59/31,141.08
6. Step 6: Final answer
   x = 23,452.90