Finding the Fourth Proportional to 9,613.30, 14,405.34 and 7,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,613.30 : 14,405.34 = 7,136.50 : x
2. Step 2: Convert to fraction form
   9,613.30/14,405.34 = 7,136.50/x
3. Step 3: Cross multiply
   9,613.30x = 14,405.34 × 7,136.50
4. Step 4: Simplify right side
   9,613.30x = 102,803,708.91
5. Step 5: Solve for x
   x = 102,803,708.91/9,613.30
6. Step 6: Final answer
   x = 10,693.90