Finding the Fourth Proportional to 11,361.87, 17,047.98 and 5,123.52

Step by Step Solution

1. Step 1: Write the proportion equation
   11,361.87 : 17,047.98 = 5,123.52 : x
2. Step 2: Convert to fraction form
   11,361.87/17,047.98 = 5,123.52/x
3. Step 3: Cross multiply
   11,361.87x = 17,047.98 × 5,123.52
4. Step 4: Simplify right side
   11,361.87x = 87,345,666.49
5. Step 5: Solve for x
   x = 87,345,666.49/11,361.87
6. Step 6: Final answer
   x = 7,687.61