Finding the Fourth Proportional to 9,622.62, 13,276.17 and 5,430.06

Step by Step Solution

1. Step 1: Write the proportion equation
   9,622.62 : 13,276.17 = 5,430.06 : x
2. Step 2: Convert to fraction form
   9,622.62/13,276.17 = 5,430.06/x
3. Step 3: Cross multiply
   9,622.62x = 13,276.17 × 5,430.06
4. Step 4: Simplify right side
   9,622.62x = 72,090,399.67
5. Step 5: Solve for x
   x = 72,090,399.67/9,622.62
6. Step 6: Final answer
   x = 7,491.76