Finding the Fourth Proportional to 9,114, 12,573.72 and 5,755.56

Step by Step Solution

1. Step 1: Write the proportion equation
   9,114 : 12,573.72 = 5,755.56 : x
2. Step 2: Convert to fraction form
   9,114/12,573.72 = 5,755.56/x
3. Step 3: Cross multiply
   9,114x = 12,573.72 × 5,755.56
4. Step 4: Simplify right side
   9,114x = 72,368,799.88
5. Step 5: Solve for x
   x = 72,368,799.88/9,114
6. Step 6: Final answer
   x = 7,940.40