Finding the Fourth Proportional to 19,401.12, 29,109.24 and 7,715.52

Step by Step Solution

1. Step 1: Write the proportion equation
   19,401.12 : 29,109.24 = 7,715.52 : x
2. Step 2: Convert to fraction form
   19,401.12/29,109.24 = 7,715.52/x
3. Step 3: Cross multiply
   19,401.12x = 29,109.24 × 7,715.52
4. Step 4: Simplify right side
   19,401.12x = 224,592,923.40
5. Step 5: Solve for x
   x = 224,592,923.40/19,401.12
6. Step 6: Final answer
   x = 11,576.29