Finding the Fourth Proportional to 6,105.12, 8,430.42 and 4,776.53

Step by Step Solution

1. Step 1: Write the proportion equation
   6,105.12 : 8,430.42 = 4,776.53 : x
2. Step 2: Convert to fraction form
   6,105.12/8,430.42 = 4,776.53/x
3. Step 3: Cross multiply
   6,105.12x = 8,430.42 × 4,776.53
4. Step 4: Simplify right side
   6,105.12x = 40,268,111.89
5. Step 5: Solve for x
   x = 40,268,111.89/6,105.12
6. Step 6: Final answer
   x = 6,595.79