Finding the Fourth Proportional to 10,890.97, 15,012.07 and 7,348.03

Step by Step Solution

1. Step 1: Write the proportion equation
   10,890.97 : 15,012.07 = 7,348.03 : x
2. Step 2: Convert to fraction form
   10,890.97/15,012.07 = 7,348.03/x
3. Step 3: Cross multiply
   10,890.97x = 15,012.07 × 7,348.03
4. Step 4: Simplify right side
   10,890.97x = 110,309,140.72
5. Step 5: Solve for x
   x = 110,309,140.72/10,890.97
6. Step 6: Final answer
   x = 10,128.50