Finding the Fourth Proportional to 10,191.74, 14,064.41 and 5,715.47

Step by Step Solution

1. Step 1: Write the proportion equation
   10,191.74 : 14,064.41 = 5,715.47 : x
2. Step 2: Convert to fraction form
   10,191.74/14,064.41 = 5,715.47/x
3. Step 3: Cross multiply
   10,191.74x = 14,064.41 × 5,715.47
4. Step 4: Simplify right side
   10,191.74x = 80,384,713.42
5. Step 5: Solve for x
   x = 80,384,713.42/10,191.74
6. Step 6: Final answer
   x = 7,887.24