Finding the Fourth Proportional to 23,915.76, 33,003.18 and 13,842.80

Step by Step Solution

1. Step 1: Write the proportion equation
   23,915.76 : 33,003.18 = 13,842.80 : x
2. Step 2: Convert to fraction form
   23,915.76/33,003.18 = 13,842.80/x
3. Step 3: Cross multiply
   23,915.76x = 33,003.18 × 13,842.80
4. Step 4: Simplify right side
   23,915.76x = 456,856,420.10
5. Step 5: Solve for x
   x = 456,856,420.10/23,915.76
6. Step 6: Final answer
   x = 19,102.73