Finding the Fourth Proportional to 12,768.96, 19,153.20 and 3,534.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,768.96 : 19,153.20 = 3,534.72 : x
2. Step 2: Convert to fraction form
   12,768.96/19,153.20 = 3,534.72/x
3. Step 3: Cross multiply
   12,768.96x = 19,153.20 × 3,534.72
4. Step 4: Simplify right side
   12,768.96x = 67,701,199.10
5. Step 5: Solve for x
   x = 67,701,199.10/12,768.96
6. Step 6: Final answer
   x = 5,302.01