Finding the Fourth Proportional to 10,613.18, 14,643.50 and 7,074.02

Step by Step Solution

1. Step 1: Write the proportion equation
   10,613.18 : 14,643.50 = 7,074.02 : x
2. Step 2: Convert to fraction form
   10,613.18/14,643.50 = 7,074.02/x
3. Step 3: Cross multiply
   10,613.18x = 14,643.50 × 7,074.02
4. Step 4: Simplify right side
   10,613.18x = 103,588,411.87
5. Step 5: Solve for x
   x = 103,588,411.87/10,613.18
6. Step 6: Final answer
   x = 9,760.36