Finding the Fourth Proportional to 31,085.30, 42,896.37 and 17,656.51

Step by Step Solution

1. Step 1: Write the proportion equation
   31,085.30 : 42,896.37 = 17,656.51 : x
2. Step 2: Convert to fraction form
   31,085.30/42,896.37 = 17,656.51/x
3. Step 3: Cross multiply
   31,085.30x = 42,896.37 × 17,656.51
4. Step 4: Simplify right side
   31,085.30x = 757,400,185.87
5. Step 5: Solve for x
   x = 757,400,185.87/31,085.30
6. Step 6: Final answer
   x = 24,365.22