Finding the Fourth Proportional to 13,796.12, 19,036.68 and 7,828.04

Step by Step Solution

1. Step 1: Write the proportion equation
   13,796.12 : 19,036.68 = 7,828.04 : x
2. Step 2: Convert to fraction form
   13,796.12/19,036.68 = 7,828.04/x
3. Step 3: Cross multiply
   13,796.12x = 19,036.68 × 7,828.04
4. Step 4: Simplify right side
   13,796.12x = 149,019,892.51
5. Step 5: Solve for x
   x = 149,019,892.51/13,796.12
6. Step 6: Final answer
   x = 10,801.58