Finding the Fourth Proportional to 31,109.50, 42,929.67 and 16,962.22

Step by Step Solution

1. Step 1: Write the proportion equation
   31,109.50 : 42,929.67 = 16,962.22 : x
2. Step 2: Convert to fraction form
   31,109.50/42,929.67 = 16,962.22/x
3. Step 3: Cross multiply
   31,109.50x = 42,929.67 × 16,962.22
4. Step 4: Simplify right side
   31,109.50x = 728,182,507.07
5. Step 5: Solve for x
   x = 728,182,507.07/31,109.50
6. Step 6: Final answer
   x = 23,407.08