Finding the Fourth Proportional to 9,930.96, 13,605.53 and 9,557.37

Step by Step Solution

1. Step 1: Write the proportion equation
   9,930.96 : 13,605.53 = 9,557.37 : x
2. Step 2: Convert to fraction form
   9,930.96/13,605.53 = 9,557.37/x
3. Step 3: Cross multiply
   9,930.96x = 13,605.53 × 9,557.37
4. Step 4: Simplify right side
   9,930.96x = 130,033,036.47
5. Step 5: Solve for x
   x = 130,033,036.47/9,930.96
6. Step 6: Final answer
   x = 13,093.70