Finding the Fourth Proportional to 10,711.52, 14,810.12 and 9,381.42

Step by Step Solution

1. Step 1: Write the proportion equation
   10,711.52 : 14,810.12 = 9,381.42 : x
2. Step 2: Convert to fraction form
   10,711.52/14,810.12 = 9,381.42/x
3. Step 3: Cross multiply
   10,711.52x = 14,810.12 × 9,381.42
4. Step 4: Simplify right side
   10,711.52x = 138,939,997.01
5. Step 5: Solve for x
   x = 138,939,997.01/10,711.52
6. Step 6: Final answer
   x = 12,971.08