Finding the Fourth Proportional to 9,385.02, 12,950.37 and 5,405.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,385.02 : 12,950.37 = 5,405.94 : x
2. Step 2: Convert to fraction form
   9,385.02/12,950.37 = 5,405.94/x
3. Step 3: Cross multiply
   9,385.02x = 12,950.37 × 5,405.94
4. Step 4: Simplify right side
   9,385.02x = 70,008,923.20
5. Step 5: Solve for x
   x = 70,008,923.20/9,385.02
6. Step 6: Final answer
   x = 7,459.65