Finding the Fourth Proportional to 31,063.58, 42,867.80 and 16,917.34

Step by Step Solution

1. Step 1: Write the proportion equation
   31,063.58 : 42,867.80 = 16,917.34 : x
2. Step 2: Convert to fraction form
   31,063.58/42,867.80 = 16,917.34/x
3. Step 3: Cross multiply
   31,063.58x = 42,867.80 × 16,917.34
4. Step 4: Simplify right side
   31,063.58x = 725,209,147.65
5. Step 5: Solve for x
   x = 725,209,147.65/31,063.58
6. Step 6: Final answer
   x = 23,345.96