Finding the Fourth Proportional to 31,271.36, 43,154.06 and 17,124.21

Step by Step Solution

1. Step 1: Write the proportion equation
   31,271.36 : 43,154.06 = 17,124.21 : x
2. Step 2: Convert to fraction form
   31,271.36/43,154.06 = 17,124.21/x
3. Step 3: Cross multiply
   31,271.36x = 43,154.06 × 17,124.21
4. Step 4: Simplify right side
   31,271.36x = 738,979,100.17
5. Step 5: Solve for x
   x = 738,979,100.17/31,271.36
6. Step 6: Final answer
   x = 23,631.18