Finding the Fourth Proportional to 10,810.26, 14,920.96 and 7,042.82

Step by Step Solution

1. Step 1: Write the proportion equation
   10,810.26 : 14,920.96 = 7,042.82 : x
2. Step 2: Convert to fraction form
   10,810.26/14,920.96 = 7,042.82/x
3. Step 3: Cross multiply
   10,810.26x = 14,920.96 × 7,042.82
4. Step 4: Simplify right side
   10,810.26x = 105,085,635.51
5. Step 5: Solve for x
   x = 105,085,635.51/10,810.26
6. Step 6: Final answer
   x = 9,720.92