Finding the Fourth Proportional to 31,070.48, 42,877.74 and 16,923.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,070.48 : 42,877.74 = 16,923.32 : x
2. Step 2: Convert to fraction form
   31,070.48/42,877.74 = 16,923.32/x
3. Step 3: Cross multiply
   31,070.48x = 42,877.74 × 16,923.32
4. Step 4: Simplify right side
   31,070.48x = 725,633,500.51
5. Step 5: Solve for x
   x = 725,633,500.51/31,070.48
6. Step 6: Final answer
   x = 23,354.44