Finding the Fourth Proportional to 8,130.72, 12,196.02 and 2,864.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,130.72 : 12,196.02 = 2,864.50 : x
2. Step 2: Convert to fraction form
   8,130.72/12,196.02 = 2,864.50/x
3. Step 3: Cross multiply
   8,130.72x = 12,196.02 × 2,864.50
4. Step 4: Simplify right side
   8,130.72x = 34,935,499.29
5. Step 5: Solve for x
   x = 34,935,499.29/8,130.72
6. Step 6: Final answer
   x = 4,296.73