Finding the Fourth Proportional to 13,156, 18,155.82 and 7,567

Step by Step Solution

1. Step 1: Write the proportion equation
   13,156 : 18,155.82 = 7,567 : x
2. Step 2: Convert to fraction form
   13,156/18,155.82 = 7,567/x
3. Step 3: Cross multiply
   13,156x = 18,155.82 × 7,567
4. Step 4: Simplify right side
   13,156x = 137,385,089.94
5. Step 5: Solve for x
   x = 137,385,089.94/13,156
6. Step 6: Final answer
   x = 10,442.77