Finding the Fourth Proportional to 22,978.42, 31,725.42 and 15,034.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,978.42 : 31,725.42 = 15,034.72 : x
2. Step 2: Convert to fraction form
   22,978.42/31,725.42 = 15,034.72/x
3. Step 3: Cross multiply
   22,978.42x = 31,725.42 × 15,034.72
4. Step 4: Simplify right side
   22,978.42x = 476,982,806.58
5. Step 5: Solve for x
   x = 476,982,806.58/22,978.42
6. Step 6: Final answer
   x = 20,757.86