Finding the Fourth Proportional to 7,157.86, 10,726.89 and 5,167.62

Step by Step Solution

1. Step 1: Write the proportion equation
   7,157.86 : 10,726.89 = 5,167.62 : x
2. Step 2: Convert to fraction form
   7,157.86/10,726.89 = 5,167.62/x
3. Step 3: Cross multiply
   7,157.86x = 10,726.89 × 5,167.62
4. Step 4: Simplify right side
   7,157.86x = 55,432,491.30
5. Step 5: Solve for x
   x = 55,432,491.30/7,157.86
6. Step 6: Final answer
   x = 7,744.28