Finding the Fourth Proportional to 9,238.78, 12,749.16 and 5,047.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.78 : 12,749.16 = 5,047.06 : x
2. Step 2: Convert to fraction form
   9,238.78/12,749.16 = 5,047.06/x
3. Step 3: Cross multiply
   9,238.78x = 12,749.16 × 5,047.06
4. Step 4: Simplify right side
   9,238.78x = 64,345,775.47
5. Step 5: Solve for x
   x = 64,345,775.47/9,238.78
6. Step 6: Final answer
   x = 6,964.75