Finding the Fourth Proportional to 7,147.72, 10,726.80 and 7,093.42

Step by Step Solution

1. Step 1: Write the proportion equation
   7,147.72 : 10,726.80 = 7,093.42 : x
2. Step 2: Convert to fraction form
   7,147.72/10,726.80 = 7,093.42/x
3. Step 3: Cross multiply
   7,147.72x = 10,726.80 × 7,093.42
4. Step 4: Simplify right side
   7,147.72x = 76,089,697.66
5. Step 5: Solve for x
   x = 76,089,697.66/7,147.72
6. Step 6: Final answer
   x = 10,645.31