Finding the Fourth Proportional to 31,081.64, 42,892.88 and 16,934.58

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.64 : 42,892.88 = 16,934.58 : x
2. Step 2: Convert to fraction form
   31,081.64/42,892.88 = 16,934.58/x
3. Step 3: Cross multiply
   31,081.64x = 42,892.88 × 16,934.58
4. Step 4: Simplify right side
   31,081.64x = 726,372,823.12
5. Step 5: Solve for x
   x = 726,372,823.12/31,081.64
6. Step 6: Final answer
   x = 23,369.84