Finding the Fourth Proportional to 10,097.91, 15,147 and 5,715.81

Step by Step Solution

1. Step 1: Write the proportion equation
   10,097.91 : 15,147 = 5,715.81 : x
2. Step 2: Convert to fraction form
   10,097.91/15,147 = 5,715.81/x
3. Step 3: Cross multiply
   10,097.91x = 15,147 × 5,715.81
4. Step 4: Simplify right side
   10,097.91x = 86,577,374.07
5. Step 5: Solve for x
   x = 86,577,374.07/10,097.91
6. Step 6: Final answer
   x = 8,573.79