Finding the Fourth Proportional to 31,035.56, 42,829.98 and 16,889.32

Step by Step Solution

1. Step 1: Write the proportion equation
   31,035.56 : 42,829.98 = 16,889.32 : x
2. Step 2: Convert to fraction form
   31,035.56/42,829.98 = 16,889.32/x
3. Step 3: Cross multiply
   31,035.56x = 42,829.98 × 16,889.32
4. Step 4: Simplify right side
   31,035.56x = 723,369,237.81
5. Step 5: Solve for x
   x = 723,369,237.81/31,035.56
6. Step 6: Final answer
   x = 23,307.76