Finding the Fourth Proportional to 13,789.92, 19,030.11 and 7,502.30

Step by Step Solution

1. Step 1: Write the proportion equation
   13,789.92 : 19,030.11 = 7,502.30 : x
2. Step 2: Convert to fraction form
   13,789.92/19,030.11 = 7,502.30/x
3. Step 3: Cross multiply
   13,789.92x = 19,030.11 × 7,502.30
4. Step 4: Simplify right side
   13,789.92x = 142,769,499.10
5. Step 5: Solve for x
   x = 142,769,499.10/13,789.92
6. Step 6: Final answer
   x = 10,353.18