Finding the Fourth Proportional to 8,499.48, 12,738.42 and 4,803.77

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.48 : 12,738.42 = 4,803.77 : x
2. Step 2: Convert to fraction form
   8,499.48/12,738.42 = 4,803.77/x
3. Step 3: Cross multiply
   8,499.48x = 12,738.42 × 4,803.77
4. Step 4: Simplify right side
   8,499.48x = 61,192,471.69
5. Step 5: Solve for x
   x = 61,192,471.69/8,499.48
6. Step 6: Final answer
   x = 7,199.56