Finding the Fourth Proportional to 9,768.18, 13,479.42 and 5,460.99

Step by Step Solution

1. Step 1: Write the proportion equation
   9,768.18 : 13,479.42 = 5,460.99 : x
2. Step 2: Convert to fraction form
   9,768.18/13,479.42 = 5,460.99/x
3. Step 3: Cross multiply
   9,768.18x = 13,479.42 × 5,460.99
4. Step 4: Simplify right side
   9,768.18x = 73,610,977.83
5. Step 5: Solve for x
   x = 73,610,977.83/9,768.18
6. Step 6: Final answer
   x = 7,535.79