Finding the Fourth Proportional to 31,032.01, 42,824.73 and 16,885.09

Step by Step Solution

1. Step 1: Write the proportion equation
   31,032.01 : 42,824.73 = 16,885.09 : x
2. Step 2: Convert to fraction form
   31,032.01/42,824.73 = 16,885.09/x
3. Step 3: Cross multiply
   31,032.01x = 42,824.73 × 16,885.09
4. Step 4: Simplify right side
   31,032.01x = 723,099,420.28
5. Step 5: Solve for x
   x = 723,099,420.28/31,032.01
6. Step 6: Final answer
   x = 23,301.73