Finding the Fourth Proportional to 9,134.73, 12,607.88 and 5,775.39

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.73 : 12,607.88 = 5,775.39 : x
2. Step 2: Convert to fraction form
   9,134.73/12,607.88 = 5,775.39/x
3. Step 3: Cross multiply
   9,134.73x = 12,607.88 × 5,775.39
4. Step 4: Simplify right side
   9,134.73x = 72,815,395.20
5. Step 5: Solve for x
   x = 72,815,395.20/9,134.73
6. Step 6: Final answer
   x = 7,971.27