Finding the Fourth Proportional to 31,574.81, 43,574.15 and 17,428.57

Step by Step Solution

1. Step 1: Write the proportion equation
   31,574.81 : 43,574.15 = 17,428.57 : x
2. Step 2: Convert to fraction form
   31,574.81/43,574.15 = 17,428.57/x
3. Step 3: Cross multiply
   31,574.81x = 43,574.15 × 17,428.57
4. Step 4: Simplify right side
   31,574.81x = 759,435,058.10
5. Step 5: Solve for x
   x = 759,435,058.10/31,574.81
6. Step 6: Final answer
   x = 24,051.93