Finding the Fourth Proportional to 9,781.52, 13,496.28 and 5,589.68

Step by Step Solution

1. Step 1: Write the proportion equation
   9,781.52 : 13,496.28 = 5,589.68 : x
2. Step 2: Convert to fraction form
   9,781.52/13,496.28 = 5,589.68/x
3. Step 3: Cross multiply
   9,781.52x = 13,496.28 × 5,589.68
4. Step 4: Simplify right side
   9,781.52x = 75,439,886.39
5. Step 5: Solve for x
   x = 75,439,886.39/9,781.52
6. Step 6: Final answer
   x = 7,712.49