Finding the Fourth Proportional to 10,191.56, 14,064.87 and 5,715.06

Step by Step Solution

1. Step 1: Write the proportion equation
   10,191.56 : 14,064.87 = 5,715.06 : x
2. Step 2: Convert to fraction form
   10,191.56/14,064.87 = 5,715.06/x
3. Step 3: Cross multiply
   10,191.56x = 14,064.87 × 5,715.06
4. Step 4: Simplify right side
   10,191.56x = 80,381,544.63
5. Step 5: Solve for x
   x = 80,381,544.63/10,191.56
6. Step 6: Final answer
   x = 7,887.07