Finding the Fourth Proportional to 13,368.83, 18,448.20 and 7,845.18

Step by Step Solution

1. Step 1: Write the proportion equation
   13,368.83 : 18,448.20 = 7,845.18 : x
2. Step 2: Convert to fraction form
   13,368.83/18,448.20 = 7,845.18/x
3. Step 3: Cross multiply
   13,368.83x = 18,448.20 × 7,845.18
4. Step 4: Simplify right side
   13,368.83x = 144,729,426.86
5. Step 5: Solve for x
   x = 144,729,426.86/13,368.83
6. Step 6: Final answer
   x = 10,825.88