Finding the Fourth Proportional to 9,132.72, 12,603.12 and 5,153.58

Step by Step Solution

1. Step 1: Write the proportion equation
   9,132.72 : 12,603.12 = 5,153.58 : x
2. Step 2: Convert to fraction form
   9,132.72/12,603.12 = 5,153.58/x
3. Step 3: Cross multiply
   9,132.72x = 12,603.12 × 5,153.58
4. Step 4: Simplify right side
   9,132.72x = 64,951,187.17
5. Step 5: Solve for x
   x = 64,951,187.17/9,132.72
6. Step 6: Final answer
   x = 7,111.92