Finding the Fourth Proportional to 13,535.42, 18,678.94 and 7,567.34

Step by Step Solution

1. Step 1: Write the proportion equation
   13,535.42 : 18,678.94 = 7,567.34 : x
2. Step 2: Convert to fraction form
   13,535.42/18,678.94 = 7,567.34/x
3. Step 3: Cross multiply
   13,535.42x = 18,678.94 × 7,567.34
4. Step 4: Simplify right side
   13,535.42x = 141,349,889.82
5. Step 5: Solve for x
   x = 141,349,889.82/13,535.42
6. Step 6: Final answer
   x = 10,442.96