Finding the Fourth Proportional to 9,939.30, 13,715.56 and 5,463.24

Step by Step Solution

1. Step 1: Write the proportion equation
   9,939.30 : 13,715.56 = 5,463.24 : x
2. Step 2: Convert to fraction form
   9,939.30/13,715.56 = 5,463.24/x
3. Step 3: Cross multiply
   9,939.30x = 13,715.56 × 5,463.24
4. Step 4: Simplify right side
   9,939.30x = 74,931,396.01
5. Step 5: Solve for x
   x = 74,931,396.01/9,939.30
6. Step 6: Final answer
   x = 7,538.90