Finding the Fourth Proportional to 9,278.72, 13,906.56 and 4,341.92

Step by Step Solution

1. Step 1: Write the proportion equation
   9,278.72 : 13,906.56 = 4,341.92 : x
2. Step 2: Convert to fraction form
   9,278.72/13,906.56 = 4,341.92/x
3. Step 3: Cross multiply
   9,278.72x = 13,906.56 × 4,341.92
4. Step 4: Simplify right side
   9,278.72x = 60,381,171.00
5. Step 5: Solve for x
   x = 60,381,171.00/9,278.72
6. Step 6: Final answer
   x = 6,507.49