Finding the Fourth Proportional to 13,803.40, 19,048.67 and 7,515.82

Step by Step Solution

1. Step 1: Write the proportion equation
   13,803.40 : 19,048.67 = 7,515.82 : x
2. Step 2: Convert to fraction form
   13,803.40/19,048.67 = 7,515.82/x
3. Step 3: Cross multiply
   13,803.40x = 19,048.67 × 7,515.82
4. Step 4: Simplify right side
   13,803.40x = 143,166,279.72
5. Step 5: Solve for x
   x = 143,166,279.72/13,803.40
6. Step 6: Final answer
   x = 10,371.82