Finding the Fourth Proportional to 12,762.56, 19,145.16 and 3,528.56

Step by Step Solution

1. Step 1: Write the proportion equation
   12,762.56 : 19,145.16 = 3,528.56 : x
2. Step 2: Convert to fraction form
   12,762.56/19,145.16 = 3,528.56/x
3. Step 3: Cross multiply
   12,762.56x = 19,145.16 × 3,528.56
4. Step 4: Simplify right side
   12,762.56x = 67,554,845.77
5. Step 5: Solve for x
   x = 67,554,845.77/12,762.56
6. Step 6: Final answer
   x = 5,293.20