Finding the Fourth Proportional to 10,020.07, 13,839.51 and 7,513.12

Step by Step Solution

1. Step 1: Write the proportion equation
   10,020.07 : 13,839.51 = 7,513.12 : x
2. Step 2: Convert to fraction form
   10,020.07/13,839.51 = 7,513.12/x
3. Step 3: Cross multiply
   10,020.07x = 13,839.51 × 7,513.12
4. Step 4: Simplify right side
   10,020.07x = 103,977,899.37
5. Step 5: Solve for x
   x = 103,977,899.37/10,020.07
6. Step 6: Final answer
   x = 10,376.96