Finding the Fourth Proportional to 31,428.86, 43,370.01 and 17,281.71

Step by Step Solution

1. Step 1: Write the proportion equation
   31,428.86 : 43,370.01 = 17,281.71 : x
2. Step 2: Convert to fraction form
   31,428.86/43,370.01 = 17,281.71/x
3. Step 3: Cross multiply
   31,428.86x = 43,370.01 × 17,281.71
4. Step 4: Simplify right side
   31,428.86x = 749,507,935.52
5. Step 5: Solve for x
   x = 749,507,935.52/31,428.86
6. Step 6: Final answer
   x = 23,847.76