Finding the Fourth Proportional to 9,920.18, 13,675.56 and 7,558.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,920.18 : 13,675.56 = 7,558.22 : x
2. Step 2: Convert to fraction form
   9,920.18/13,675.56 = 7,558.22/x
3. Step 3: Cross multiply
   9,920.18x = 13,675.56 × 7,558.22
4. Step 4: Simplify right side
   9,920.18x = 103,362,891.10
5. Step 5: Solve for x
   x = 103,362,891.10/9,920.18
6. Step 6: Final answer
   x = 10,419.46