Finding the Fourth Proportional to 30,940.61, 42,699.02 and 17,511.62

Step by Step Solution

1. Step 1: Write the proportion equation
   30,940.61 : 42,699.02 = 17,511.62 : x
2. Step 2: Convert to fraction form
   30,940.61/42,699.02 = 17,511.62/x
3. Step 3: Cross multiply
   30,940.61x = 42,699.02 × 17,511.62
4. Step 4: Simplify right side
   30,940.61x = 747,728,711.56
5. Step 5: Solve for x
   x = 747,728,711.56/30,940.61
6. Step 6: Final answer
   x = 24,166.58