Finding the Fourth Proportional to 30,510.96, 42,104.69 and 16,897.71

Step by Step Solution

1. Step 1: Write the proportion equation
   30,510.96 : 42,104.69 = 16,897.71 : x
2. Step 2: Convert to fraction form
   30,510.96/42,104.69 = 16,897.71/x
3. Step 3: Cross multiply
   30,510.96x = 42,104.69 × 16,897.71
4. Step 4: Simplify right side
   30,510.96x = 711,472,756.77
5. Step 5: Solve for x
   x = 711,472,756.77/30,510.96
6. Step 6: Final answer
   x = 23,318.60