Finding the Fourth Proportional to 12,830.96, 19,241.78 and 5,435.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,830.96 : 19,241.78 = 5,435.94 : x
2. Step 2: Convert to fraction form
   12,830.96/19,241.78 = 5,435.94/x
3. Step 3: Cross multiply
   12,830.96x = 19,241.78 × 5,435.94
4. Step 4: Simplify right side
   12,830.96x = 104,597,161.57
5. Step 5: Solve for x
   x = 104,597,161.57/12,830.96
6. Step 6: Final answer
   x = 8,151.94