Finding the Fourth Proportional to 12,763.77, 19,149.31 and 5,364.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,763.77 : 19,149.31 = 5,364.42 : x
2. Step 2: Convert to fraction form
   12,763.77/19,149.31 = 5,364.42/x
3. Step 3: Cross multiply
   12,763.77x = 19,149.31 × 5,364.42
4. Step 4: Simplify right side
   12,763.77x = 102,724,941.55
5. Step 5: Solve for x
   x = 102,724,941.55/12,763.77
6. Step 6: Final answer
   x = 8,048.17