Finding the Fourth Proportional to 19,498.72, 29,240.80 and 7,015.36

Step by Step Solution

1. Step 1: Write the proportion equation
   19,498.72 : 29,240.80 = 7,015.36 : x
2. Step 2: Convert to fraction form
   19,498.72/29,240.80 = 7,015.36/x
3. Step 3: Cross multiply
   19,498.72x = 29,240.80 × 7,015.36
4. Step 4: Simplify right side
   19,498.72x = 205,134,738.69
5. Step 5: Solve for x
   x = 205,134,738.69/19,498.72
6. Step 6: Final answer
   x = 10,520.42