Finding the Fourth Proportional to 12,536.79, 17,296.50 and 7,155.36

Step by Step Solution

1. Step 1: Write the proportion equation
   12,536.79 : 17,296.50 = 7,155.36 : x
2. Step 2: Convert to fraction form
   12,536.79/17,296.50 = 7,155.36/x
3. Step 3: Cross multiply
   12,536.79x = 17,296.50 × 7,155.36
4. Step 4: Simplify right side
   12,536.79x = 123,762,684.24
5. Step 5: Solve for x
   x = 123,762,684.24/12,536.79
6. Step 6: Final answer
   x = 9,871.96