Finding the Fourth Proportional to 31,071.83, 42,879.12 and 16,924.67

Step by Step Solution

1. Step 1: Write the proportion equation
   31,071.83 : 42,879.12 = 16,924.67 : x
2. Step 2: Convert to fraction form
   31,071.83/42,879.12 = 16,924.67/x
3. Step 3: Cross multiply
   31,071.83x = 42,879.12 × 16,924.67
4. Step 4: Simplify right side
   31,071.83x = 725,714,955.89
5. Step 5: Solve for x
   x = 725,714,955.89/31,071.83
6. Step 6: Final answer
   x = 23,356.04