Finding the Fourth Proportional to 31,412.35, 43,349.37 and 17,072.18

Step by Step Solution

1. Step 1: Write the proportion equation
   31,412.35 : 43,349.37 = 17,072.18 : x
2. Step 2: Convert to fraction form
   31,412.35/43,349.37 = 17,072.18/x
3. Step 3: Cross multiply
   31,412.35x = 43,349.37 × 17,072.18
4. Step 4: Simplify right side
   31,412.35x = 740,068,030.78
5. Step 5: Solve for x
   x = 740,068,030.78/31,412.35
6. Step 6: Final answer
   x = 23,559.78