Finding the Fourth Proportional to 9,238.32, 12,749.76 and 5,047.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,238.32 : 12,749.76 = 5,047.20 : x
2. Step 2: Convert to fraction form
   9,238.32/12,749.76 = 5,047.20/x
3. Step 3: Cross multiply
   9,238.32x = 12,749.76 × 5,047.20
4. Step 4: Simplify right side
   9,238.32x = 64,350,588.67
5. Step 5: Solve for x
   x = 64,350,588.67/9,238.32
6. Step 6: Final answer
   x = 6,965.62