Finding the Fourth Proportional to 31,155.58, 42,994.83 and 17,009.74

Step by Step Solution

1. Step 1: Write the proportion equation
   31,155.58 : 42,994.83 = 17,009.74 : x
2. Step 2: Convert to fraction form
   31,155.58/42,994.83 = 17,009.74/x
3. Step 3: Cross multiply
   31,155.58x = 42,994.83 × 17,009.74
4. Step 4: Simplify right side
   31,155.58x = 731,330,879.64
5. Step 5: Solve for x
   x = 731,330,879.64/31,155.58
6. Step 6: Final answer
   x = 23,473.51