Finding the Fourth Proportional to 7,191.68, 10,780.72 and 3,293.76

Step by Step Solution

1. Step 1: Write the proportion equation
   7,191.68 : 10,780.72 = 3,293.76 : x
2. Step 2: Convert to fraction form
   7,191.68/10,780.72 = 3,293.76/x
3. Step 3: Cross multiply
   7,191.68x = 10,780.72 × 3,293.76
4. Step 4: Simplify right side
   7,191.68x = 35,509,104.31
5. Step 5: Solve for x
   x = 35,509,104.31/7,191.68
6. Step 6: Final answer
   x = 4,937.53