Finding the Fourth Proportional to 11,381.66, 15,697.78 and 7,404.04

Step by Step Solution

1. Step 1: Write the proportion equation
   11,381.66 : 15,697.78 = 7,404.04 : x
2. Step 2: Convert to fraction form
   11,381.66/15,697.78 = 7,404.04/x
3. Step 3: Cross multiply
   11,381.66x = 15,697.78 × 7,404.04
4. Step 4: Simplify right side
   11,381.66x = 116,226,991.03
5. Step 5: Solve for x
   x = 116,226,991.03/11,381.66
6. Step 6: Final answer
   x = 10,211.78