Finding the Fourth Proportional to 13,800.94, 19,045.30 and 7,513.31

Step by Step Solution

1. Step 1: Write the proportion equation
   13,800.94 : 19,045.30 = 7,513.31 : x
2. Step 2: Convert to fraction form
   13,800.94/19,045.30 = 7,513.31/x
3. Step 3: Cross multiply
   13,800.94x = 19,045.30 × 7,513.31
4. Step 4: Simplify right side
   13,800.94x = 143,093,271.77
5. Step 5: Solve for x
   x = 143,093,271.77/13,800.94
6. Step 6: Final answer
   x = 10,368.37