Finding the Fourth Proportional to 13,789.80, 19,029.86 and 7,502.12

Step by Step Solution

1. Step 1: Write the proportion equation
   13,789.80 : 19,029.86 = 7,502.12 : x
2. Step 2: Convert to fraction form
   13,789.80/19,029.86 = 7,502.12/x
3. Step 3: Cross multiply
   13,789.80x = 19,029.86 × 7,502.12
4. Step 4: Simplify right side
   13,789.80x = 142,764,293.30
5. Step 5: Solve for x
   x = 142,764,293.30/13,789.80
6. Step 6: Final answer
   x = 10,352.89