Finding the Fourth Proportional to 9,129.42, 12,598.59 and 5,150.46

Step by Step Solution

1. Step 1: Write the proportion equation
   9,129.42 : 12,598.59 = 5,150.46 : x
2. Step 2: Convert to fraction form
   9,129.42/12,598.59 = 5,150.46/x
3. Step 3: Cross multiply
   9,129.42x = 12,598.59 × 5,150.46
4. Step 4: Simplify right side
   9,129.42x = 64,888,533.85
5. Step 5: Solve for x
   x = 64,888,533.85/9,129.42
6. Step 6: Final answer
   x = 7,107.63