Finding the Fourth Proportional to 10,959.96, 15,144.78 and 7,810.68

Step by Step Solution

1. Step 1: Write the proportion equation
   10,959.96 : 15,144.78 = 7,810.68 : x
2. Step 2: Convert to fraction form
   10,959.96/15,144.78 = 7,810.68/x
3. Step 3: Cross multiply
   10,959.96x = 15,144.78 × 7,810.68
4. Step 4: Simplify right side
   10,959.96x = 118,291,030.25
5. Step 5: Solve for x
   x = 118,291,030.25/10,959.96
6. Step 6: Final answer
   x = 10,793.02