Finding the Fourth Proportional to 5,113.76, 7,056.89 and 2,845.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,113.76 : 7,056.89 = 2,845.05 : x
2. Step 2: Convert to fraction form
   5,113.76/7,056.89 = 2,845.05/x
3. Step 3: Cross multiply
   5,113.76x = 7,056.89 × 2,845.05
4. Step 4: Simplify right side
   5,113.76x = 20,077,190.67
5. Step 5: Solve for x
   x = 20,077,190.67/5,113.76
6. Step 6: Final answer
   x = 3,926.11