Finding the Fourth Proportional to 9,199.02, 12,694.54 and 5,007.28

Step by Step Solution

1. Step 1: Write the proportion equation
   9,199.02 : 12,694.54 = 5,007.28 : x
2. Step 2: Convert to fraction form
   9,199.02/12,694.54 = 5,007.28/x
3. Step 3: Cross multiply
   9,199.02x = 12,694.54 × 5,007.28
4. Step 4: Simplify right side
   9,199.02x = 63,565,116.25
5. Step 5: Solve for x
   x = 63,565,116.25/9,199.02
6. Step 6: Final answer
   x = 6,909.99