Finding the Fourth Proportional to 31,434.82, 43,380.18 and 17,288.56

Step by Step Solution

1. Step 1: Write the proportion equation
   31,434.82 : 43,380.18 = 17,288.56 : x
2. Step 2: Convert to fraction form
   31,434.82/43,380.18 = 17,288.56/x
3. Step 3: Cross multiply
   31,434.82x = 43,380.18 × 17,288.56
4. Step 4: Simplify right side
   31,434.82x = 749,980,844.74
5. Step 5: Solve for x
   x = 749,980,844.74/31,434.82
6. Step 6: Final answer
   x = 23,858.28