Finding the Fourth Proportional to 9,354.72, 12,910.32 and 5,628

Step by Step Solution

1. Step 1: Write the proportion equation
   9,354.72 : 12,910.32 = 5,628 : x
2. Step 2: Convert to fraction form
   9,354.72/12,910.32 = 5,628/x
3. Step 3: Cross multiply
   9,354.72x = 12,910.32 × 5,628
4. Step 4: Simplify right side
   9,354.72x = 72,659,280.96
5. Step 5: Solve for x
   x = 72,659,280.96/9,354.72
6. Step 6: Final answer
   x = 7,767.13