Finding the Fourth Proportional to 9,428.04, 13,007.12 and 5,651.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,428.04 : 13,007.12 = 5,651.28 : x
2. Step 2: Convert to fraction form
   9,428.04/13,007.12 = 5,651.28/x
3. Step 3: Cross multiply
   9,428.04x = 13,007.12 × 5,651.28
4. Step 4: Simplify right side
   9,428.04x = 73,506,848.86
5. Step 5: Solve for x
   x = 73,506,848.86/9,428.04
6. Step 6: Final answer
   x = 7,796.62