Finding the Fourth Proportional to 9,776.46, 13,499.29 and 9,030.15

Step by Step Solution

1. Step 1: Write the proportion equation
   9,776.46 : 13,499.29 = 9,030.15 : x
2. Step 2: Convert to fraction form
   9,776.46/13,499.29 = 9,030.15/x
3. Step 3: Cross multiply
   9,776.46x = 13,499.29 × 9,030.15
4. Step 4: Simplify right side
   9,776.46x = 121,900,613.59
5. Step 5: Solve for x
   x = 121,900,613.59/9,776.46
6. Step 6: Final answer
   x = 12,468.79