Finding the Fourth Proportional to 30,667.96, 42,317.04 and 17,236.72

Step by Step Solution

1. Step 1: Write the proportion equation
   30,667.96 : 42,317.04 = 17,236.72 : x
2. Step 2: Convert to fraction form
   30,667.96/42,317.04 = 17,236.72/x
3. Step 3: Cross multiply
   30,667.96x = 42,317.04 × 17,236.72
4. Step 4: Simplify right side
   30,667.96x = 729,406,969.71
5. Step 5: Solve for x
   x = 729,406,969.71/30,667.96
6. Step 6: Final answer
   x = 23,784.01