Finding the Fourth Proportional to 11,179.62, 15,422.49 and 7,199.46

Step by Step Solution

1. Step 1: Write the proportion equation
   11,179.62 : 15,422.49 = 7,199.46 : x
2. Step 2: Convert to fraction form
   11,179.62/15,422.49 = 7,199.46/x
3. Step 3: Cross multiply
   11,179.62x = 15,422.49 × 7,199.46
4. Step 4: Simplify right side
   11,179.62x = 111,033,599.86
5. Step 5: Solve for x
   x = 111,033,599.86/11,179.62
6. Step 6: Final answer
   x = 9,931.79