Finding the Fourth Proportional to 11,184.42, 15,439.20 and 7,551.15

Step by Step Solution

1. Step 1: Write the proportion equation
   11,184.42 : 15,439.20 = 7,551.15 : x
2. Step 2: Convert to fraction form
   11,184.42/15,439.20 = 7,551.15/x
3. Step 3: Cross multiply
   11,184.42x = 15,439.20 × 7,551.15
4. Step 4: Simplify right side
   11,184.42x = 116,583,715.08
5. Step 5: Solve for x
   x = 116,583,715.08/11,184.42
6. Step 6: Final answer
   x = 10,423.76