Finding the Fourth Proportional to 13,800.72, 19,045.25 and 7,513.10

Step by Step Solution

1. Step 1: Write the proportion equation
   13,800.72 : 19,045.25 = 7,513.10 : x
2. Step 2: Convert to fraction form
   13,800.72/19,045.25 = 7,513.10/x
3. Step 3: Cross multiply
   13,800.72x = 19,045.25 × 7,513.10
4. Step 4: Simplify right side
   13,800.72x = 143,088,791.33
5. Step 5: Solve for x
   x = 143,088,791.33/13,800.72
6. Step 6: Final answer
   x = 10,368.21