Finding the Fourth Proportional to 9,111.11, 12,576.47 and 5,335.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,111.11 : 12,576.47 = 5,335.47 : x
2. Step 2: Convert to fraction form
   9,111.11/12,576.47 = 5,335.47/x
3. Step 3: Cross multiply
   9,111.11x = 12,576.47 × 5,335.47
4. Step 4: Simplify right side
   9,111.11x = 67,101,351.71
5. Step 5: Solve for x
   x = 67,101,351.71/9,111.11
6. Step 6: Final answer
   x = 7,364.79