Finding the Fourth Proportional to 9,134.04, 12,604.77 and 5,155.05

Step by Step Solution

1. Step 1: Write the proportion equation
   9,134.04 : 12,604.77 = 5,155.05 : x
2. Step 2: Convert to fraction form
   9,134.04/12,604.77 = 5,155.05/x
3. Step 3: Cross multiply
   9,134.04x = 12,604.77 × 5,155.05
4. Step 4: Simplify right side
   9,134.04x = 64,978,219.59
5. Step 5: Solve for x
   x = 64,978,219.59/9,134.04
6. Step 6: Final answer
   x = 7,113.85