Finding the Fourth Proportional to 30,960.58, 42,724.73 and 17,533.10

Step by Step Solution

1. Step 1: Write the proportion equation
   30,960.58 : 42,724.73 = 17,533.10 : x
2. Step 2: Convert to fraction form
   30,960.58/42,724.73 = 17,533.10/x
3. Step 3: Cross multiply
   30,960.58x = 42,724.73 × 17,533.10
4. Step 4: Simplify right side
   30,960.58x = 749,096,875.90
5. Step 5: Solve for x
   x = 749,096,875.90/30,960.58
6. Step 6: Final answer
   x = 24,195.19