Finding the Fourth Proportional to 13,789.35, 19,029.78 and 7,820.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,789.35 : 19,029.78 = 7,820.82 : x
2. Step 2: Convert to fraction form
   13,789.35/19,029.78 = 7,820.82/x
3. Step 3: Cross multiply
   13,789.35x = 19,029.78 × 7,820.82
4. Step 4: Simplify right side
   13,789.35x = 148,828,484.02
5. Step 5: Solve for x
   x = 148,828,484.02/13,789.35
6. Step 6: Final answer
   x = 10,793.00