Finding the Fourth Proportional to 13,819.12, 19,071.06 and 7,850.68

Step by Step Solution

1. Step 1: Write the proportion equation
   13,819.12 : 19,071.06 = 7,850.68 : x
2. Step 2: Convert to fraction form
   13,819.12/19,071.06 = 7,850.68/x
3. Step 3: Cross multiply
   13,819.12x = 19,071.06 × 7,850.68
4. Step 4: Simplify right side
   13,819.12x = 149,720,789.32
5. Step 5: Solve for x
   x = 149,720,789.32/13,819.12
6. Step 6: Final answer
   x = 10,834.32