Finding the Fourth Proportional to 10,099.46, 15,152.56 and 5,167.78

Step by Step Solution

1. Step 1: Write the proportion equation
   10,099.46 : 15,152.56 = 5,167.78 : x
2. Step 2: Convert to fraction form
   10,099.46/15,152.56 = 5,167.78/x
3. Step 3: Cross multiply
   10,099.46x = 15,152.56 × 5,167.78
4. Step 4: Simplify right side
   10,099.46x = 78,305,096.52
5. Step 5: Solve for x
   x = 78,305,096.52/10,099.46
6. Step 6: Final answer
   x = 7,753.39