Finding the Fourth Proportional to 11,178.62, 15,433.25 and 7,404.99

Step by Step Solution

1. Step 1: Write the proportion equation
   11,178.62 : 15,433.25 = 7,404.99 : x
2. Step 2: Convert to fraction form
   11,178.62/15,433.25 = 7,404.99/x
3. Step 3: Cross multiply
   11,178.62x = 15,433.25 × 7,404.99
4. Step 4: Simplify right side
   11,178.62x = 114,283,024.89
5. Step 5: Solve for x
   x = 114,283,024.89/11,178.62
6. Step 6: Final answer
   x = 10,223.36