Finding the Fourth Proportional to 30,885.12, 42,621.61 and 16,737.98

Step by Step Solution

1. Step 1: Write the proportion equation
   30,885.12 : 42,621.61 = 16,737.98 : x
2. Step 2: Convert to fraction form
   30,885.12/42,621.61 = 16,737.98/x
3. Step 3: Cross multiply
   30,885.12x = 42,621.61 × 16,737.98
4. Step 4: Simplify right side
   30,885.12x = 713,399,655.75
5. Step 5: Solve for x
   x = 713,399,655.75/30,885.12
6. Step 6: Final answer
   x = 23,098.49