Finding the Fourth Proportional to 23,978.76, 33,098.31 and 15,481.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,978.76 : 33,098.31 = 15,481.05 : x
2. Step 2: Convert to fraction form
   23,978.76/33,098.31 = 15,481.05/x
3. Step 3: Cross multiply
   23,978.76x = 33,098.31 × 15,481.05
4. Step 4: Simplify right side
   23,978.76x = 512,396,592.03
5. Step 5: Solve for x
   x = 512,396,592.03/23,978.76
6. Step 6: Final answer
   x = 21,368.77