Finding the Fourth Proportional to 7,017.34, 9,687.56 and 5,126.80

Step by Step Solution

1. Step 1: Write the proportion equation
   7,017.34 : 9,687.56 = 5,126.80 : x
2. Step 2: Convert to fraction form
   7,017.34/9,687.56 = 5,126.80/x
3. Step 3: Cross multiply
   7,017.34x = 9,687.56 × 5,126.80
4. Step 4: Simplify right side
   7,017.34x = 49,666,182.61
5. Step 5: Solve for x
   x = 49,666,182.61/7,017.34
6. Step 6: Final answer
   x = 7,077.64