Finding the Fourth Proportional to 31,185.78, 43,034.12 and 17,035.62

Step by Step Solution

1. Step 1: Write the proportion equation
   31,185.78 : 43,034.12 = 17,035.62 : x
2. Step 2: Convert to fraction form
   31,185.78/43,034.12 = 17,035.62/x
3. Step 3: Cross multiply
   31,185.78x = 43,034.12 × 17,035.62
4. Step 4: Simplify right side
   31,185.78x = 733,112,915.35
5. Step 5: Solve for x
   x = 733,112,915.35/31,185.78
6. Step 6: Final answer
   x = 23,507.92