Finding the Fourth Proportional to 9,116.69, 12,583.12 and 7,622.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,116.69 : 12,583.12 = 7,622.01 : x
2. Step 2: Convert to fraction form
   9,116.69/12,583.12 = 7,622.01/x
3. Step 3: Cross multiply
   9,116.69x = 12,583.12 × 7,622.01
4. Step 4: Simplify right side
   9,116.69x = 95,908,666.47
5. Step 5: Solve for x
   x = 95,908,666.47/9,116.69
6. Step 6: Final answer
   x = 10,520.12