Finding the Fourth Proportional to 25,422.56, 38,158.68 and 13,760.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,422.56 : 38,158.68 = 13,760.72 : x
2. Step 2: Convert to fraction form
   25,422.56/38,158.68 = 13,760.72/x
3. Step 3: Cross multiply
   25,422.56x = 38,158.68 × 13,760.72
4. Step 4: Simplify right side
   25,422.56x = 525,090,911.05
5. Step 5: Solve for x
   x = 525,090,911.05/25,422.56
6. Step 6: Final answer
   x = 20,654.53