Finding the Fourth Proportional to 8,499.29, 12,738.13 and 4,803.59

Step by Step Solution

1. Step 1: Write the proportion equation
   8,499.29 : 12,738.13 = 4,803.59 : x
2. Step 2: Convert to fraction form
   8,499.29/12,738.13 = 4,803.59/x
3. Step 3: Cross multiply
   8,499.29x = 12,738.13 × 4,803.59
4. Step 4: Simplify right side
   8,499.29x = 61,188,791.74
5. Step 5: Solve for x
   x = 61,188,791.74/8,499.29
6. Step 6: Final answer
   x = 7,199.29