Finding the Fourth Proportional to 31,264.77, 43,145.42 and 17,117.31

Step by Step Solution

1. Step 1: Write the proportion equation
   31,264.77 : 43,145.42 = 17,117.31 : x
2. Step 2: Convert to fraction form
   31,264.77/43,145.42 = 17,117.31/x
3. Step 3: Cross multiply
   31,264.77x = 43,145.42 × 17,117.31
4. Step 4: Simplify right side
   31,264.77x = 738,533,529.22
5. Step 5: Solve for x
   x = 738,533,529.22/31,264.77
6. Step 6: Final answer
   x = 23,621.91