Finding the Fourth Proportional to 10,099.42, 15,155.44 and 3,859.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,099.42 : 15,155.44 = 3,859.96 : x
2. Step 2: Convert to fraction form
   10,099.42/15,155.44 = 3,859.96/x
3. Step 3: Cross multiply
   10,099.42x = 15,155.44 × 3,859.96
4. Step 4: Simplify right side
   10,099.42x = 58,499,392.18
5. Step 5: Solve for x
   x = 58,499,392.18/10,099.42
6. Step 6: Final answer
   x = 5,792.35