Finding the Fourth Proportional to 9,337.72, 12,886.14 and 5,146.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,337.72 : 12,886.14 = 5,146.12 : x
2. Step 2: Convert to fraction form
   9,337.72/12,886.14 = 5,146.12/x
3. Step 3: Cross multiply
   9,337.72x = 12,886.14 × 5,146.12
4. Step 4: Simplify right side
   9,337.72x = 66,313,622.78
5. Step 5: Solve for x
   x = 66,313,622.78/9,337.72
6. Step 6: Final answer
   x = 7,101.69