Finding the Fourth Proportional to 9,785.25, 13,503.45 and 5,536.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,785.25 : 13,503.45 = 5,536.15 : x
2. Step 2: Convert to fraction form
   9,785.25/13,503.45 = 5,536.15/x
3. Step 3: Cross multiply
   9,785.25x = 13,503.45 × 5,536.15
4. Step 4: Simplify right side
   9,785.25x = 74,757,111.72
5. Step 5: Solve for x
   x = 74,757,111.72/9,785.25
6. Step 6: Final answer
   x = 7,639.78