Finding the Fourth Proportional to 9,700.89, 13,386.83 and 5,509.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,700.89 : 13,386.83 = 5,509.37 : x
2. Step 2: Convert to fraction form
   9,700.89/13,386.83 = 5,509.37/x
3. Step 3: Cross multiply
   9,700.89x = 13,386.83 × 5,509.37
4. Step 4: Simplify right side
   9,700.89x = 73,752,972.05
5. Step 5: Solve for x
   x = 73,752,972.05/9,700.89
6. Step 6: Final answer
   x = 7,602.70