Finding the Fourth Proportional to 31,507.47, 43,480.06 and 17,167.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,507.47 : 43,480.06 = 17,167.25 : x
2. Step 2: Convert to fraction form
   31,507.47/43,480.06 = 17,167.25/x
3. Step 3: Cross multiply
   31,507.47x = 43,480.06 × 17,167.25
4. Step 4: Simplify right side
   31,507.47x = 746,433,125.82
5. Step 5: Solve for x
   x = 746,433,125.82/31,507.47
6. Step 6: Final answer
   x = 23,690.67