Finding the Fourth Proportional to 30,915.52, 42,664.37 and 17,486.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,915.52 : 42,664.37 = 17,486.50 : x
2. Step 2: Convert to fraction form
   30,915.52/42,664.37 = 17,486.50/x
3. Step 3: Cross multiply
   30,915.52x = 42,664.37 × 17,486.50
4. Step 4: Simplify right side
   30,915.52x = 746,050,205.25
5. Step 5: Solve for x
   x = 746,050,205.25/30,915.52
6. Step 6: Final answer
   x = 24,131.90