Finding the Fourth Proportional to 13,020.58, 17,966.37 and 7,714.54

Step by Step Solution

1. Step 1: Write the proportion equation
   13,020.58 : 17,966.37 = 7,714.54 : x
2. Step 2: Convert to fraction form
   13,020.58/17,966.37 = 7,714.54/x
3. Step 3: Cross multiply
   13,020.58x = 17,966.37 × 7,714.54
4. Step 4: Simplify right side
   13,020.58x = 138,602,280.02
5. Step 5: Solve for x
   x = 138,602,280.02/13,020.58
6. Step 6: Final answer
   x = 10,644.86