Finding the Fourth Proportional to 31,109.54, 42,931.83 and 16,962.48

Step by Step Solution

1. Step 1: Write the proportion equation
   31,109.54 : 42,931.83 = 16,962.48 : x
2. Step 2: Convert to fraction form
   31,109.54/42,931.83 = 16,962.48/x
3. Step 3: Cross multiply
   31,109.54x = 42,931.83 × 16,962.48
4. Step 4: Simplify right side
   31,109.54x = 728,230,307.74
5. Step 5: Solve for x
   x = 728,230,307.74/31,109.54
6. Step 6: Final answer
   x = 23,408.59