Finding the Fourth Proportional to 10,097.20, 15,147.96 and 4,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   10,097.20 : 15,147.96 = 4,256.56 : x
2. Step 2: Convert to fraction form
   10,097.20/15,147.96 = 4,256.56/x
3. Step 3: Cross multiply
   10,097.20x = 15,147.96 × 4,256.56
4. Step 4: Simplify right side
   10,097.20x = 64,478,200.62
5. Step 5: Solve for x
   x = 64,478,200.62/10,097.20
6. Step 6: Final answer
   x = 6,385.75