Finding the Fourth Proportional to 30,511.72, 42,106.53 and 17,084.15

Step by Step Solution

1. Step 1: Write the proportion equation
   30,511.72 : 42,106.53 = 17,084.15 : x
2. Step 2: Convert to fraction form
   30,511.72/42,106.53 = 17,084.15/x
3. Step 3: Cross multiply
   30,511.72x = 42,106.53 × 17,084.15
4. Step 4: Simplify right side
   30,511.72x = 719,354,274.50
5. Step 5: Solve for x
   x = 719,354,274.50/30,511.72
6. Step 6: Final answer
   x = 23,576.33