Finding the Fourth Proportional to 13,800.45, 19,043.67 and 7,512.69

Step by Step Solution

1. Step 1: Write the proportion equation
   13,800.45 : 19,043.67 = 7,512.69 : x
2. Step 2: Convert to fraction form
   13,800.45/19,043.67 = 7,512.69/x
3. Step 3: Cross multiply
   13,800.45x = 19,043.67 × 7,512.69
4. Step 4: Simplify right side
   13,800.45x = 143,069,189.17
5. Step 5: Solve for x
   x = 143,069,189.17/13,800.45
6. Step 6: Final answer
   x = 10,366.99