Finding the Fourth Proportional to 30,812.53, 42,520.31 and 17,383.60

Step by Step Solution

1. Step 1: Write the proportion equation
   30,812.53 : 42,520.31 = 17,383.60 : x
2. Step 2: Convert to fraction form
   30,812.53/42,520.31 = 17,383.60/x
3. Step 3: Cross multiply
   30,812.53x = 42,520.31 × 17,383.60
4. Step 4: Simplify right side
   30,812.53x = 739,155,974.00
5. Step 5: Solve for x
   x = 739,155,974.00/30,812.53
6. Step 6: Final answer
   x = 23,988.82