Finding the Fourth Proportional to 31,605.18, 43,615.71 and 17,457.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,605.18 : 43,615.71 = 17,457.18 : x
2. Step 2: Convert to fraction form
   31,605.18/43,615.71 = 17,457.18/x
3. Step 3: Cross multiply
   31,605.18x = 43,615.71 × 17,457.18
4. Step 4: Simplify right side
   31,605.18x = 761,407,300.30
5. Step 5: Solve for x
   x = 761,407,300.30/31,605.18
6. Step 6: Final answer
   x = 24,091.22