Finding the Fourth Proportional to 10,346.18, 15,513.59 and 4,099.86

Step by Step Solution

1. Step 1: Write the proportion equation
   10,346.18 : 15,513.59 = 4,099.86 : x
2. Step 2: Convert to fraction form
   10,346.18/15,513.59 = 4,099.86/x
3. Step 3: Cross multiply
   10,346.18x = 15,513.59 × 4,099.86
4. Step 4: Simplify right side
   10,346.18x = 63,603,557.35
5. Step 5: Solve for x
   x = 63,603,557.35/10,346.18
6. Step 6: Final answer
   x = 6,147.54