Finding the Fourth Proportional to 31,436.32, 43,383.03 and 17,290.08

Step by Step Solution

1. Step 1: Write the proportion equation
   31,436.32 : 43,383.03 = 17,290.08 : x
2. Step 2: Convert to fraction form
   31,436.32/43,383.03 = 17,290.08/x
3. Step 3: Cross multiply
   31,436.32x = 43,383.03 × 17,290.08
4. Step 4: Simplify right side
   31,436.32x = 750,095,842.43
5. Step 5: Solve for x
   x = 750,095,842.43/31,436.32
6. Step 6: Final answer
   x = 23,860.80