Finding the Fourth Proportional to 13,535.98, 18,679.86 and 7,567.62

Step by Step Solution

1. Step 1: Write the proportion equation
   13,535.98 : 18,679.86 = 7,567.62 : x
2. Step 2: Convert to fraction form
   13,535.98/18,679.86 = 7,567.62/x
3. Step 3: Cross multiply
   13,535.98x = 18,679.86 × 7,567.62
4. Step 4: Simplify right side
   13,535.98x = 141,362,082.13
5. Step 5: Solve for x
   x = 141,362,082.13/13,535.98
6. Step 6: Final answer
   x = 10,443.43