Finding the Fourth Proportional to 13,789.35, 19,032.69 and 7,824.51

Step by Step Solution

1. Step 1: Write the proportion equation
   13,789.35 : 19,032.69 = 7,824.51 : x
2. Step 2: Convert to fraction form
   13,789.35/19,032.69 = 7,824.51/x
3. Step 3: Cross multiply
   13,789.35x = 19,032.69 × 7,824.51
4. Step 4: Simplify right side
   13,789.35x = 148,921,473.23
5. Step 5: Solve for x
   x = 148,921,473.23/13,789.35
6. Step 6: Final answer
   x = 10,799.75