Finding the Fourth Proportional to 13,799.52, 19,042.81 and 7,830.83

Step by Step Solution

1. Step 1: Write the proportion equation
   13,799.52 : 19,042.81 = 7,830.83 : x
2. Step 2: Convert to fraction form
   13,799.52/19,042.81 = 7,830.83/x
3. Step 3: Cross multiply
   13,799.52x = 19,042.81 × 7,830.83
4. Step 4: Simplify right side
   13,799.52x = 149,121,007.83
5. Step 5: Solve for x
   x = 149,121,007.83/13,799.52
6. Step 6: Final answer
   x = 10,806.25