Finding the Fourth Proportional to 11,864.30, 17,796.12 and 3,099.22

Step by Step Solution

1. Step 1: Write the proportion equation
   11,864.30 : 17,796.12 = 3,099.22 : x
2. Step 2: Convert to fraction form
   11,864.30/17,796.12 = 3,099.22/x
3. Step 3: Cross multiply
   11,864.30x = 17,796.12 × 3,099.22
4. Step 4: Simplify right side
   11,864.30x = 55,154,091.03
5. Step 5: Solve for x
   x = 55,154,091.03/11,864.30
6. Step 6: Final answer
   x = 4,648.74