Finding the Fourth Proportional to 11,214.38, 15,459.24 and 7,180.76

Step by Step Solution

1. Step 1: Write the proportion equation
   11,214.38 : 15,459.24 = 7,180.76 : x
2. Step 2: Convert to fraction form
   11,214.38/15,459.24 = 7,180.76/x
3. Step 3: Cross multiply
   11,214.38x = 15,459.24 × 7,180.76
4. Step 4: Simplify right side
   11,214.38x = 111,009,092.22
5. Step 5: Solve for x
   x = 111,009,092.22/11,214.38
6. Step 6: Final answer
   x = 9,898.82