Finding the Fourth Proportional to 9,660.93, 13,331.90 and 5,411.94

Step by Step Solution

1. Step 1: Write the proportion equation
   9,660.93 : 13,331.90 = 5,411.94 : x
2. Step 2: Convert to fraction form
   9,660.93/13,331.90 = 5,411.94/x
3. Step 3: Cross multiply
   9,660.93x = 13,331.90 × 5,411.94
4. Step 4: Simplify right side
   9,660.93x = 72,151,415.83
5. Step 5: Solve for x
   x = 72,151,415.83/9,660.93
6. Step 6: Final answer
   x = 7,468.37