Finding the Fourth Proportional to 9,760.63, 13,468.81 and 5,781.07

Step by Step Solution

1. Step 1: Write the proportion equation
   9,760.63 : 13,468.81 = 5,781.07 : x
2. Step 2: Convert to fraction form
   9,760.63/13,468.81 = 5,781.07/x
3. Step 3: Cross multiply
   9,760.63x = 13,468.81 × 5,781.07
4. Step 4: Simplify right side
   9,760.63x = 77,864,133.43
5. Step 5: Solve for x
   x = 77,864,133.43/9,760.63
6. Step 6: Final answer
   x = 7,977.37